Free Chicago Medical Malpractice Guide

Part I: What Counts as Medical Malpractice Under Illinois Law?

Under Illinois law, medical malpractice is professional negligence by a licensed health care provider. The patient must prove four elements by a preponderance of the evidence: a duty of care, a departure from the accepted standard of care, proximate causation, and resulting damages. Illinois requires expert testimony to establish the standard and the departure in nearly every case.

The four elements a patient must prove

Illinois does not treat medical malpractice as a special kind of wrong. It is ordinary negligence law applied to a profession, with one adjustment. Because jurors are not trained in medicine, the law requires that the standard of care and the departure from it be proved through qualified expert testimony. The Illinois Supreme Court set out the framework in Purtill v. Hess, 111 Ill. 2d 229 (1986), and it has not changed in substance since. The patient must prove each element below. Proof that a fact is more likely true than not is enough.

Duty. A duty of care arises when a provider undertakes to treat a patient. Once a physician, nurse, dentist, or hospital accepts a patient, the provider must have and use the knowledge, skill, and care a reasonably careful member of that profession would use in similar circumstances. Duty is rarely disputed in a treating relationship. It is disputed when the defendant is a consultant who never saw the patient, a physician who read a study for another department, or an on-call specialist who declined to come in.

Breach. Breach is a departure from the standard of care. It is not a choice another practitioner might have made differently. Medicine often permits more than one acceptable approach to a problem. The question is whether the choice made fell outside the range reasonably careful practitioners would accept, judged by what was known at the time and not by what became clear later.

Causation. The departure must be a proximate cause of the injury. If the injury would have occurred even with careful treatment, the claim fails no matter how clear the error was. Many sympathetic cases end here, because the disease was already advanced or because the complication was a known risk that careful technique does not always prevent. Causation is discussed further below.

Damages. The patient, or after a death the estate and family, must have suffered an actual loss: medical expense, lost income, disability, disfigurement, pain, or loss of a normal life. An error caught and corrected before it caused harm may be a quality problem for the hospital to fix. It is not a lawsuit.

What the standard of care is, and who defines it

IPI Civil No. 105.01 is the pattern jury instruction for these cases. It tells the jury that a provider must have and use the knowledge, skill, and care ordinarily used by a reasonably careful provider of the same kind, and that failing to do what such a provider would do, or doing what such a provider would not do, is professional negligence. The instruction then adds a limit that surprises many clients. The law does not say how a reasonably careful physician would act. The jury must decide that from the opinions of qualified witnesses, together with evidence of professional standards, bylaws, policies, and procedures, and it may not rely on its own knowledge.

Two consequences follow. First, an Illinois malpractice case is proved through experts. In Studt v. Sherman Health Systems, 2011 IL 108182, the Illinois Supreme Court reaffirmed that expert opinion is required in a professional negligence case except in limited circumstances. The exception, often called the common-knowledge exception, covers conduct so plainly negligent that a layperson can judge it, such as operating on the wrong limb. Courts apply it sparingly.

Second, not every physician may serve as that expert. Section 8-2501 of the Code of Civil Procedure, 735 ILCS 5/8-2501, directs the court to consider the relationship between the witness’s specialty and the treatment at issue; whether the witness devotes a substantial part of his or her time to practice, teaching, or university research in that area; whether the witness holds a license in the same profession as the defendant; and, when the defendant is not a specialist, whether the witness knows the standard of care practiced in Illinois. The old rule that measured a physician against practitioners in the same locality has largely faded. A board-certified specialist in Chicago is generally held to the standard of the specialty, not the neighborhood. The firm’s discussion of what the standard of care means in Illinois medical malpractice cases goes further.

A note from our own files. The health professional who reviews the records and signs the pre-suit report described in Part V is often, but not always, the expert who later testifies at trial. Different statutes with different tests govern the two roles. A reviewer who satisfies one is not automatically qualified for the other. Choosing the right professional for each role, early, is part of the work.

Causation and the loss-of-chance doctrine

Illinois measures causation by the ordinary tort standard. The patient must show that the negligence more probably than not caused the injury. In a diagnosis or delay case the defense is nearly always the same: the patient’s condition was already so advanced that the outcome would have been the same with perfect care.

The loss-of-chance doctrine answers that defense. The Illinois Supreme Court adopted it in Holton v. Memorial Hospital, 176 Ill. 2d 95 (1997). Under Holton, a patient may prove proximate cause with expert testimony, to a reasonable degree of medical certainty, that the negligence lessened the effectiveness of treatment or increased the risk of a bad outcome. The patient need not prove that a better result would have followed, or that the chance of recovery exceeded 50 percent before the error. Loss of chance is not a separate lawsuit in Illinois. It is one way to prove proximate cause. In 2021, in Bailey v. Mercy Hospital and Medical Center, the Illinois Supreme Court confirmed that the standard proximate-cause instruction is enough to put the theory before a jury.

The doctrine matters most in delayed-diagnosis cases involving cancer, stroke, heart attack, and infection, where the medical literature can measure how outcomes worsen with time. It does not save a case in which no treatment would have changed the result.

Informed consent

A claim that a provider failed to obtain informed consent is a professional negligence claim in Illinois, not a separate tort. The patient must prove that the provider had a duty to disclose material risks and alternatives, failed to disclose them adequately, that a reasonable person in the patient’s position would have declined the treatment if told, and that the treatment caused injury. Illinois measures the duty to disclose by what a reasonable practitioner in the same field would have disclosed in similar circumstances, so expert testimony is ordinarily required on that element.

A signed consent form is evidence that risks were discussed. It does not waive a later claim that the procedure was performed negligently. Consent to a plan of care after a fair explanation is not consent to careless technique.

When negligence may be inferred: res ipsa loquitur

A patient may rely on res ipsa loquitur in a malpractice case, but the statute controls how. Under 735 ILCS 5/2-1113, the court, not the jury, decides whether the doctrine applies. The court relies either on the common knowledge of laypersons or on expert testimony that the result would not ordinarily occur without negligence. The doctrine most often arises when a sponge or instrument is found inside a patient after surgery. Even then an expert is usually needed to explain why the result does not happen without negligence, and the doctrine permits an inference; it does not compel a finding. The firm has addressed who decides whether res ipsa loquitur applies in an Illinois malpractice case.

What is not malpractice

Several situations cause real distress without producing a claim. A known complication that was disclosed, watched for, and properly managed is not negligence. A choice among acceptable treatments is not negligence because a different choice might have worked better. Poor bedside manner, a long wait, or a billing dispute is not negligence. A death from a disease that was diagnosed correctly and treated appropriately is not negligence, however painful.

Hospitals sometimes call a preventable error an accident or a complication. We do not accept either label until a qualified medical professional has reviewed the records, because the label is a conclusion, and under Illinois law that conclusion belongs to the expert and the jury. We also decline cases when the review shows careful treatment and a bad outcome. Telling a family that early, and explaining why, is part of practicing this area responsibly.

Hypothetical example

This example is fictional. It does not describe a real patient, a real client of Paul Padda Law Injury Attorneys, or a real hospital, and it predicts no result.

Mr. Ortega, 64, arrives at a Chicago emergency department at 7 p.m. with sudden slurred speech and weakness in his right arm. The triage nurse records both symptoms. By the time the physician examines him, the symptoms have partly improved. The physician attributes the episode to low blood sugar, orders no brain imaging, does not consult neurology, and discharges him with instructions to see his primary doctor. At 4 a.m. Mr. Ortega has a major stroke that leaves his right side permanently paralyzed.

A reviewing emergency physician later concludes that a reasonably careful emergency physician, faced with those symptoms, would have activated the hospital’s stroke protocol, obtained imaging, and admitted the patient for monitoring and treatment. A neurologist concludes that timely evaluation would more probably than not have led to treatment that limited the stroke.

On those facts all four elements line up. Duty arose when the hospital accepted Mr. Ortega as a patient. Breach is the failure to work up transient stroke symptoms. Causation comes from the neurologist’s opinion, which fits Holton: the delay lessened the effectiveness of treatment. Damages are severe and permanent, the kind of loss the firm’s Chicago catastrophic injury lawyers address when a lasting disability changes a family’s finances and daily life.

Change one fact and the result changes. If the neurologist concluded that the stroke would have been just as severe with immediate treatment, the case would have breach without causation, and Illinois law would allow no recovery. That is why the records review comes first, and why we examine the causation opinion as closely as the standard-of-care opinion before filing.

Part II: Who Can Be Held Responsible for Medical Negligence in Illinois?

Under Illinois law, responsibility for medical negligence can rest with the individual provider, with the hospital that employed or held out that provider, or with the institution itself for its own failures. When a county, the State of Illinois, or the federal government operates the facility, different immunities, deadlines, courts, and damage limits apply.

Individual providers

The limitations statute, 735 ILCS 5/13-212, speaks of actions against any physician, dentist, registered nurse, or hospital arising out of patient care. Illinois courts apply the same framework to other licensed providers, including advanced practice nurses, physician assistants, pharmacists, podiatric physicians, and therapists. Each owes the patient the care of a reasonably careful member of that profession. Each may be named as a defendant.

Nurses need separate mention because families often assume only the physician can be responsible. A nurse has an independent duty to monitor the patient, to recognize and report a change in condition, and to use the hospital’s chain of command when a physician does not respond. Failures of that kind are often the negligence a chart actually shows. The firm has addressed whether nursing errors can support a malpractice case in Chicago.

Hospitals: two separate theories of liability

A hospital may be responsible on two distinct theories. A complaint often pleads both.

Vicarious liability. A hospital is liable for the negligence of its employees acting within the scope of their work. That covers staff nurses, technicians, residents, and employed physicians. Many Chicago hospitals, however, staff their emergency departments, radiology, anesthesia, and other services with independent contractors. For those physicians Illinois recognizes apparent agency, a doctrine the Illinois Supreme Court set out in Gilbert v. Sycamore Municipal Hospital, 156 Ill. 2d 511 (1993). The patient must show that the hospital held itself out as the provider of care, or acted in a way that would lead a reasonable person to believe the physician was its agent, and that the patient relied on the hospital rather than on a particular physician. Consent forms disclosing independent-contractor status count in that analysis, but they are not always decisive. What the patient was told, how the department was presented, and whether the patient had any real choice of physician all matter. The firm’s discussion of apparent agency in Illinois hospital malpractice claims covers the doctrine in depth.

Institutional negligence. Apart from any individual’s negligence, a hospital owes its own duty to the patient. The Illinois Supreme Court recognized that duty in Darling v. Charleston Community Memorial Hospital, 33 Ill. 2d 326 (1965), a decision that changed hospital liability nationally. A hospital may be liable for failing to use reasonable care in credentialing and monitoring the physicians it allows to practice, in staffing its units, in adopting and enforcing policies, and in seeing that a deteriorating patient gets attention. This theory is proved differently. Because it concerns the institution’s management, the jury may consider hospital bylaws, accreditation standards, licensing regulations, and internal policies, and expert testimony is not always required as it is for a claim against a physician. The Illinois Supreme Court drew that distinction in Studt v. Sherman Health Systems, 2011 IL 108182.

The institutional theory reaches the system rather than the individual. One missed lab value may be one nurse’s error. A pattern of missed lab values on a chronically understaffed unit is the hospital’s.

When the responsible party is not yet known

Medical records do not always show who made a decision. A family often cannot tell whether a radiologist, a hospitalist, or a consulting group failed to act. Illinois provides a tool. Under 735 ILCS 5/2-402, a plaintiff may name individuals or entities as respondents in discovery. They must answer discovery without being sued, and the plaintiff may move to convert a respondent into a defendant if the evidence shows probable cause. The procedure has strict timing rules, which the firm explains in its discussion of respondents in discovery under 735 ILCS 5/2-402, and it must be used within the limitations period that governs the claim.

Government facilities: where Chicago patients need particular care

Chicago has an unusual number of hospitals run by governments. Cook County Health operates John H. Stroger, Jr. Hospital, Provident Hospital, and a network of clinics. The University of Illinois Hospital is an arm of the State. Jesse Brown VA Medical Center and Edward Hines, Jr. VA Hospital are federal, and many community health centers in the city are treated as federal for malpractice purposes. Our cases have involved care at Cook County Health and the University of Illinois Hospital as well as at Chicago’s private systems. The differences in the rules are large.

County and other local public hospitals. The Local Governmental and Governmental Employees Tort Immunity Act, 745 ILCS 10, governs claims against a local public entity such as Cook County. For claims arising out of patient care, 745 ILCS 10/8-101(b) keeps the same two-year discovery period and four-year repose period that apply to private providers. The immunities are different. Section 6-105 immunizes a local public entity and its employees for failing to make, or making an inadequate, physical or mental examination to determine whether a person has a disease or condition. Section 6-106(a) immunizes them for injury resulting from diagnosing or failing to diagnose an illness. Section 6-106(d) preserves liability for negligence in prescribing or administering treatment. In Michigan Avenue National Bank v. County of Cook, 191 Ill. 2d 493 (2000), the Illinois Supreme Court applied those sections to bar a claim that Cook County Hospital physicians failed to order a mammogram and biopsy and so failed to diagnose a patient’s breast cancer. The result is a line that does not exist for private hospitals. A missed diagnosis at a county facility may be immune. Negligent treatment of a diagnosed condition is not. How the claim is framed, and what the records show about whether a diagnosis was made and then mishandled, can decide whether the claim exists. Prejudgment interest is also unavailable against governmental entities under 735 ILCS 5/2-1303(c).

State facilities. A claim against the State of Illinois, including the Board of Trustees of the University of Illinois, must be brought in the Illinois Court of Claims, which has exclusive jurisdiction. Two deadlines apply. Under 705 ILCS 505/22-1, a person about to bring a personal injury claim against the State must file a written notice with the Attorney General and the Clerk of the Court of Claims within one year of the injury or accrual of the claim. Under 705 ILCS 505/22, the claim itself generally must be filed within two years. There is no jury. Tort awards are capped under 705 ILCS 505/8(d). The base amount of $2,000,000 is adjusted for inflation each year, and the Illinois Comptroller has published the 2026 Court of Claims award limit as $2,629,104.52. Whether an individual physician employed by a State facility can instead be sued in the circuit court depends on the source of the duty. In Jinkins v. Lee, 209 Ill. 2d 320 (2004), the Illinois Supreme Court held that sovereign immunity does not bar a circuit court action against a State-employed clinician when the duty breached arose from the professional relationship with the patient rather than from State employment. Courts decide that question case by case, and it should be evaluated at the start.

Federal facilities and deemed health centers. A malpractice claim arising from care at a VA hospital, or at a community health center that the Health Resources and Services Administration has deemed a federal employee for malpractice purposes under 42 U.S.C. 233(g) through (n), is a claim against the United States under the Federal Tort Claims Act. The individual provider cannot be sued. Under 28 U.S.C. 2401(b), the agency must receive a written administrative claim within two years after the claim accrues. The VA Office of General Counsel accepts Standard Form 95 or any writing that states the allegations in detail, demands a sum certain, and bears the claimant’s or attorney’s signature. The agency has six months to act. If it denies the claim, or does not act within six months, suit may be filed in the United States District Court, in Chicago the Northern District of Illinois, and must be filed within six months after a denial is mailed. A judge tries the case without a jury. Punitive damages are unavailable under 28 U.S.C. 2674. Illinois law supplies the standard of care and the measure of damages. Attorney fees are limited by 28 U.S.C. 2678 to 25 percent of a judgment or settlement after suit and 20 percent of an administrative settlement. The FTCA does not cover care the VA bought from community providers or independent contractors; those claims proceed against the private provider under Illinois law. HRSA maintains a search tool for deemed health centers. Because deeming is fact-specific and renewed each year, we confirm a clinic’s status directly rather than assume it.

One recent development affects federal cases. Illinois’s certificate-of-merit statute requires the affidavit and report to be attached to the complaint. In Young v. United States, 942 F.3d 349 (7th Cir. 2019), the Seventh Circuit held that a federal complaint cannot be dismissed for lacking the 2-622 affidavit, while treating the merits review as a substantive requirement to be met before summary judgment. On January 20, 2026, in Berk v. Choy, the United States Supreme Court held that a state law requiring an affidavit of merit to accompany the complaint does not apply in federal court because it conflicts with Rule 8 of the Federal Rules of Civil Procedure. The pleading-stage requirement is gone in federal court. The proof has not changed. A patient suing the United States under Illinois law still must prove the standard of care, the breach, and causation through qualified expert testimony.

A VA case, and what it taught us

A case from our own files shows how these claims are won. An Army veteran retained us to sue VA hospital medical personnel for malpractice after what our case summary describes as a botched surgery. He had been treated at VA facilities in Las Vegas, Nevada, and Los Angeles, California. He lost sensation in his hands and suffered significant emotional pain. Because the claim proceeded under the Federal Tort Claims Act, there would be no jury; a federal judge would decide it. In an intensive deposition, I questioned the government’s expert witness at length about the records and about the medical basis for each of his opinions. When it ended, the government’s attorney told me, “we should try to settle this case.” The case settled during litigation for $150,000. The firm’s case results page describes it. Prior results do not guarantee a similar outcome, and that case arose in Nevada and California, but the FTCA process is the same in Illinois.

That case changed how we prepare every malpractice matter. In a bench trial there is no jury to persuade later. The government values its case by how its expert will hold up in front of the judge, and the deposition is the first, and often the only, time that question is tested. We now treat the defense expert’s deposition as the trial. We prepare for it from the complete chart and the medical literature, question by question, and we commit the expert to positions on the record that cannot be changed at trial. When an expert concedes under that questioning that the records do not support an opinion, the other side’s view of the case changes, whether the decision-maker will be a judge or a Cook County jury. From my years litigating civil cases for the Department of Justice, I also know that an administrative claim is read first by agency lawyers who look at the records and the sum-certain demand, so we prepare a federal claim with the same records review that precedes a state-court complaint. The firm’s Chicago VA medical malpractice attorneys page describes that process for veterans and their families.

Where an Illinois medical negligence claim is heard depends on who operated the facility

The table below summarizes the rules in this Part. It reflects statutory and case law current as of the date of this guide. It is not advice about a particular claim.

A note on nursing homes

A resident injured in a licensed long-term care facility may have claims under the Illinois Nursing Home Care Act, 210 ILCS 45. That Act creates its own rights and remedies, in addition to or instead of a malpractice claim against the facility’s medical staff. Part III addresses that distinction and the neglect patterns that most often appear in long-term care records.

Part III: Which Medical Errors Most Often Support an Illinois Malpractice Claim?

The medical errors that most often support an Illinois malpractice claim are diagnostic failures involving stroke, heart attack, sepsis, and cancer; surgical and anesthesia errors; medication errors; birth injuries; and neglect in hospitals and nursing homes. Each category still requires proof that a provider departed from the standard of care and that the departure caused the injury.

What the research shows

Two recent studies describe the field. The 2023 New England Journal of Medicine study discussed in the opening section sorted the adverse events it found in a random sample of hospital admissions. Adverse drug events were the most common at 39 percent. Surgical or other procedural events followed at 30.4 percent, patient-care events such as falls and pressure injuries at 15 percent, and health care-associated infections at 11.9 percent. A separate analysis by researchers at Johns Hopkins, published in BMJ Quality & Safety and available through the National Library of Medicine, estimated that about 795,000 Americans each year die or are permanently disabled because a dangerous disease was misdiagnosed. The plausible range was about 598,000 to 1,023,000. Five conditions, stroke, sepsis, pneumonia, venous thromboembolism, and lung cancer, accounted for 38.7 percent of those serious harms, and fifteen conditions accounted for about half.

The two studies measure different things. Medication and procedural events are the most frequent harms inside a hospital. Diagnostic errors, which often happen in an emergency department or clinic before anyone is admitted, do the most damage. A chart usually shows a medication error plainly. It rarely announces a missed diagnosis, which must be rebuilt from what was documented, what was ordered, and what was not.

Illinois has a reporting law that is not yet in force. The Illinois Adverse Health Care Events Reporting Law of 2005, 410 ILCS 522, requires hospitals and surgical centers to report serious adverse events to the Illinois Department of Public Health. As of this writing, the Department reports that the system is not yet active and that statewide implementation is planned for the first quarter of 2027. When it operates, the event reports, root-cause analyses, and corrective action plans will be confidential and not discoverable in a civil case. For a Chicago family, that means no public agency currently catalogs hospital errors in a form a patient can consult. The review of a patient’s own records described in Part V remains the main way an error comes to light.

Diagnostic errors: failure to diagnose, delayed diagnosis, and misdiagnosis

The legal question in a diagnosis case is not whether the diagnosis was hard. It is whether a reasonably careful clinician, given the same symptoms, history, and test results, would have ordered the study, read the image correctly, acted on the abnormal result, or arranged the follow-up that was skipped. The same patterns recur in Illinois cases: chest pain attributed to indigestion without an electrocardiogram and cardiac enzymes; transient neurological symptoms discharged without a stroke evaluation; an abnormal radiology finding noted in a report that no one communicated to the patient; a rising white blood cell count or lactate level documented but not treated as infection; a screening result or pathology slide misread.

Causation in these cases turns on how much the delay changed the outcome, so the loss-of-chance analysis in Part I is central, and the medical literature on time-sensitive conditions becomes evidence. Sepsis is the clearest example. The timing of antibiotics and fluids is measured in hours, and the firm has written about how how delayed antibiotics can support a Chicago sepsis malpractice claim. The general elements appear in the firm’s discussion of failure-to-diagnose claims under Illinois law. One caution from Part II applies here. When the care occurred at a county facility, the Tort Immunity Act may immunize a failure to examine or diagnose while preserving a claim for negligent treatment, so how the facts are described can decide whether a claim exists.

Surgical and anesthesia errors

Surgical claims fall into recognizable groups. Wrong-site, wrong-patient, and wrong-procedure surgery are the events for which the common-knowledge exception may apply. Retained sponges, needles, and instruments are the classic setting for the res ipsa loquitur inference discussed in Part I. Injury to a nearby organ, nerve, or vessel is more contested, because some such injuries are recognized risks of the procedure; the question is whether the injury reflects careless technique or a known complication that was disclosed and properly managed. Post-operative failures, including delayed recognition of bleeding, infection, or a leaking anastomosis, are often nursing and monitoring claims rather than claims against the surgeon.

Anesthesia cases turn on airway management, aspiration, dosing, and above all monitoring and the response to a change in vital signs. A short period of low oxygen can cause permanent cognitive injury. Those cases are built from the anesthesia record, the pulse oximetry and capnography tracings, and any code documentation. Where the result is lasting neurological damage, the firm’s Chicago brain injury attorneys page addresses the long-term medical and vocational losses that must be proved as damages. The firm has also written about when a Chicago patient can sue for anesthesia errors in Illinois.

Medication and pharmacy errors

Adverse drug events were the most common harm in the NEJM study. They arise at every step: the wrong drug or dose prescribed; a known allergy or drug interaction not checked; an order transcribed or entered incorrectly; the wrong medication or dose given; or a high-risk medication started without the monitoring it requires. Anticoagulants, insulin, opioids, and chemotherapy agents appear again and again because the margin for error is thin and the harm, when it happens, is severe.

Illinois law assigns duties along the chain. The prescriber must use reasonable care in choosing and dosing the medication. The nurse must verify the patient, drug, dose, route, and time before giving it. The pharmacist must screen for interactions, allergies, and dosing errors. The hospital, on the institutional theory in Part II, must maintain systems that catch these errors before they reach the patient. The firm’s discussion of whether a medication error can be medical malpractice in Illinois explains how these duties are proved.

Birth injuries

Birth injury cases are among the hardest in the field, medically and legally. The recurring allegations are failure to recognize and respond to fetal distress on the monitoring strip, delay in performing a cesarean delivery, improper use of vacuum or forceps, mismanagement of shoulder dystocia, and failure to manage maternal conditions such as hemorrhage or preeclampsia. The injuries include hypoxic-ischemic brain injury and cerebral palsy in the child, brachial plexus injury, and maternal injury or death.

Two features of Illinois law matter here. First, the filing deadline for a child injured before age 18 is longer: generally eight years from the negligent act, but never past the child’s 22nd birthday, under 735 ILCS 5/13-212(b). Part IV explains how that deadline interacts with the parents’ own claims. Second, Illinois has no cap on the damages a jury may award, and the case that established that rule, Lebron v. Gottlieb Memorial Hospital, was itself a birth injury case from a suburban Chicago hospital in which the child suffered severe brain injury and cerebral palsy. Proving these cases requires obstetric, maternal-fetal medicine, neonatal, and pediatric neurology experts, together with life-care planners who can project decades of care. The firm has written about shoulder dystocia and brachial plexus injury claims in Illinois.

Infections, falls, and pressure injuries in the hospital

Patient-care events and health care-associated infections together made up about a quarter of the adverse events in the NEJM sample. In litigation these cases often proceed on the institutional theory. A fall after a documented high fall-risk assessment, a pressure injury that progressed without the repositioning and skin checks the hospital’s own policy required, or a central-line infection where sterile-technique protocols were not followed may reflect staffing, training, and policy failures for which the hospital answers directly. The nursing flow sheets, risk assessments, and policies are the evidence. They are also the documents most likely to be missing from the copy a patient receives through a portal rather than through a formal records request.

Neglect in nursing homes and long-term care

When the setting is a licensed nursing home rather than a hospital, a different statute controls. The Illinois Nursing Home Care Act, 210 ILCS 45, guarantees residents a set of rights, including the right to be free from abuse and neglect. Under 210 ILCS 45/3-601 and 3-602, it makes the facility’s owner and licensee liable for the negligent acts of their employees and allows the resident to recover damages together with costs and attorney fees. In Eads v. Heritage Enterprises, 204 Ill. 2d 92 (2003), the Illinois Supreme Court held that a claim against the owner or licensee under the Act does not require the 2-622 certificate of merit, and Illinois courts have allowed punitive damages under the Act on proof of willful and wanton misconduct, a remedy the malpractice statutes bar. A claim against an individual nurse or physician for professional negligence remains a malpractice claim subject to the ordinary rules. The two frameworks carry different deadlines, remedies, and proof requirements, so the choice between them, or the decision to plead both, is made at the start. The firm’s Chicago nursing home abuse lawyers page addresses the neglect patterns most often documented in long-term care records: falls, pressure injuries, dehydration and malnutrition, medication errors, and untreated infections.

How we approach the category

In our office the category is not the starting point. The chart is. A family may call about a “surgical error,” and the records may show that the operation was done competently and that the injury came from a nursing failure to escalate post-operative bleeding, or from an anesthesia record that documents a long drop in oxygen saturation that no one addressed. We work with board-certified medical reviewers to identify exactly where the protocol was broken, whether that was a lab report no one read or a slip of the scalpel, and we let the records assign the category. That discipline protects the client. A complaint that names the right theory against the right defendant survives the motions described in Part VII. One that does not may never reach a jury.

Part IV: How Long Do You Have to File a Medical Malpractice Case in Illinois?

An adult in Illinois generally must file a medical malpractice lawsuit within two years of the date the patient knew, or should have known, of the injury and its wrongful cause, and never more than four years after the negligent act, under 735 ILCS 5/13-212(a). Longer periods apply to children and to some patients under a legal disability.

Two clocks run at the same time

Illinois uses two time limits, and a claim must satisfy both. The statute governing actions against physicians and hospitals, 735 ILCS 5/13-212(a), provides that no action arising out of patient care may be brought more than two years after the date the claimant knew, or through reasonable diligence should have known, or received written notice of the injury, whichever comes first. That is the statute of limitations. It is a discovery clock. The same subsection adds that in no event may the action be brought more than four years after the act or omission that caused the injury. That is the statute of repose. It runs from the negligent act itself, no matter when the patient learned of it.

The two clocks answer different questions. The limitations period asks when the patient had enough information to investigate. The Illinois Supreme Court reads the statute to require knowledge of two things: that an injury occurred and that it may have been wrongfully caused. Knowing that a surgery went badly is not, by itself, knowing that it went badly because of negligence. But a patient is expected to inquire once the facts suggest a wrongful cause, and the two years begin when a reasonable person would have started asking. The repose period asks nothing about knowledge. It exists to give providers a fixed end to their exposure, and Illinois courts enforce it strictly.

The discovery rule therefore protects a patient who could not have known of an error for a year or two. It does not protect a patient whose error surfaces more than four years after the fact. The firm’s separate discussions of the the two-year filing deadline for malpractice in Illinois, the the statute of repose in Illinois malpractice cases, and the the discovery rule in Illinois medical malpractice cases examine each rule in depth. This Part explains which clock governs which situation.

Hypothetical example: how discovery and repose interact

This example is fictional. It does not describe a real patient, a real client of Paul Padda Law Injury Attorneys, or a real hospital, and it predicts no result.

In March 2021, Ms. Kowalski has a chest CT scan at a Chicago hospital for an unrelated complaint. The radiologist’s report notes a small lung nodule and recommends follow-up imaging in six months. No one tells her, and no follow-up is ordered. In June 2026 she is diagnosed with advanced lung cancer. Her oncologist reviews the old images and tells her the nodule was visible five years earlier.

Under the discovery rule, Ms. Kowalski’s two years would begin in June 2026, when she first learned that her injury may have been wrongfully caused. But the four-year repose period ran from the March 2021 scan and ended in March 2025. Her claim against the hospital and the radiologist is barred, and the discovery rule cannot revive it. The only statutory route around the repose period is fraudulent concealment, discussed below, and a simple failure to communicate a result does not ordinarily qualify.

Move the scan to March 2024. The repose period now runs to March 2028. Discovery in June 2026 would ordinarily give her until June 2028, but the repose period cuts that short, and the last day to file is in March 2028. In our office we would treat the earlier of the two dates as the deadline. We would also calculate it separately for every provider involved, because a radiologist who read the scan in 2024 and a physician who saw the patient in 2025 do not share a repose date.

Written notice can start the clock

Section 13-212(a) starts the two-year period on the earliest of three events: actual knowledge, constructive knowledge, or receipt of written notice of the injury. Hospitals increasingly disclose adverse events to patients in writing, in a letter or a portal message. A written disclosure of an injury can start the limitations period even if the patient does not yet understand its legal meaning. Keep any such communication and show it to counsel at the first meeting.

Children and patients under a legal disability

For a patient who was under 18 when the negligence occurred, 735 ILCS 5/13-212(b) replaces both clocks with one rule: the action must be brought within eight years of the negligent act, and in no event after the patient’s 22nd birthday. A child injured at birth has until age eight. A child injured at 16 has until age 22. The period is generous compared with the adult rule, but it is not open-ended, and birth injury cases in particular take years of development before the extent of the injury is clear. Waiting for certainty is a common and avoidable mistake.

Parents have their own claim for the child’s medical expenses. Under 735 ILCS 5/13-203, that claim must be brought within the same period as the child’s action, and it is tolled or extended whenever the child’s period is. The parents’ claim runs on the child’s clock, not on the shorter adult schedule.

If the patient was under a legal disability other than minority when the claim accrued, 735 ILCS 5/13-212(c) provides that the limitations period does not begin to run until the disability is removed. If a patient becomes disabled after the claim accrues but before the period has run, 735 ILCS 5/13-212(d) stays the limitations period until the disability is removed, but expressly leaves the repose period in place. Whether a particular condition is a legal disability is a question of fact and law. No family should assume that a relative’s incapacity has stopped the clock without advice.

Fraudulent concealment

Section 13-212(a) opens with an exception for 735 ILCS 5/13-215, which provides that when a person liable to an action fraudulently conceals the cause of action, suit may be brought within five years after the claimant discovers it. Because the repose period is expressly subject to that exception, concealment is one of the few doctrines that can permit a filing more than four years after the negligent act. Illinois courts apply it narrowly. They generally require affirmative acts or statements meant to prevent discovery of the claim. Silence, a failure to volunteer an error, or an optimistic bedside remark is ordinarily not enough. The doctrine is pleaded when the records support it. A case should never be planned around it.

When the patient has died

A death changes the deadlines in three ways. First, the Wrongful Death Act, 740 ILCS 180/2(d), provides that a wrongful death action must be commenced within two years after the death. Second, in Moon v. Rhode, 2016 IL 119572, the Illinois Supreme Court held unanimously that the discovery rule of 735 ILCS 5/13-212(a) applies to wrongful death and survival actions alleging medical malpractice. The two years may therefore begin when the family knew or reasonably should have known that the death was wrongfully caused, rather than on the date of death. The repose period of 13-212(a), measured from the negligent act, continues to apply. Third, if a patient dies before the limitations period on the patient’s own claim has run, 735 ILCS 5/13-209(a) allows the personal representative to bring the action within the original period or within one year after the death, whichever is later.

These rules can give a family more time. They also create a question of fact, when the family should have known of a wrongful cause, that a defendant will litigate. Families who suspect that a death followed an error should request the complete records at once, for the reasons in Part V, and should not wait for an autopsy or an apology to begin the review.

Government facilities

The government-facility rules in Part II shorten the schedule. A patient-care claim against a local public entity such as Cook County Health follows the same two-year discovery and four-year repose structure under 745 ILCS 10/8-101(b). A claim against a State facility requires written notice to the Attorney General and the Clerk of the Court of Claims within one year under 705 ILCS 505/22-1 and filing within two years under 705 ILCS 505/22. A claim against the United States, including a VA hospital or a deemed health center, must be presented to the agency in writing within two years under 28 U.S.C. 2401(b), and federal law decides when that period begins. Under United States v. Kubrick, 444 U.S. 111 (1979), a federal malpractice claim accrues when the patient knows of the injury and its cause, even if the patient does not yet know the cause was negligent. Suit must follow within six months after the agency mails a denial.

The certificate-of-merit safety valve

Part V explains the health professional’s report that must accompany an Illinois malpractice complaint under 735 ILCS 5/2-622. When the deadline is close and the report cannot be obtained in time, 735 ILCS 5/2-622(a)(2) permits the complaint to be filed with an affidavit stating that fact. The certificate and report are then due within 90 days after filing. The provision exists for the situation this Part describes, but it should not be part of the plan. A deficient or late report filed under it can still lead to dismissal, and it does not extend any deadline against a governmental defendant.

Illinois medical malpractice deadlines at a glance

The table below summarizes the rules in this Part. Several rows can apply to one case, and the shortest applicable period controls. A licensed Illinois attorney should calculate the dates from the actual records.

The cost of waiting

Every rule in this Part favors the family that acts early and penalizes the one that waits for the hospital to explain itself. Records take weeks to arrive. A qualified reviewer needs time to read them. The written report required before filing cannot be rushed without risk. Because the discovery date is so often disputed, we calculate deadlines from the earliest date a defendant could plausibly argue the patient should have known, and we treat that date as the deadline. If you are unsure which clock governs your situation, request a consultation before the earliest possible date, not after it.

Part V: What Has to Happen Before an Illinois Malpractice Lawsuit Can Be Filed?

Before an Illinois medical malpractice lawsuit can be filed, the patient’s complete medical records must be obtained, a qualified health professional must review them and prepare a written report finding a reasonable and meritorious cause for the action, and the attorney must attach that report and a sworn affidavit to the complaint under 735 ILCS 5/2-622.

Step one: obtain the complete record

Everything in an Illinois malpractice case begins with the chart, and Illinois law gives the patient a clear right to it. Under 735 ILCS 5/8-2001, every public and private health care facility and every health care practitioner must, on the written request of the patient or of a person holding the patient’s signed authorization, let the patient or the patient’s attorney examine and copy the patient care records, including the history, bedside notes, charts, pictures, and plates kept in connection with the treatment. The request must be in writing and delivered to the facility’s administrator or to the practitioner. Under subsection (e), the request must be satisfied within 30 days. If more time is needed, the facility must explain the delay in writing within those 30 days, and it must produce the records within 60 days in any event. Copy charges are limited to a statutory schedule that is adjusted each year. Records already kept electronically must be provided electronically on request. Films and images may be charged at their reasonable duplication cost. Federal privacy regulations under HIPAA give a parallel right of access with a similar 30-day expectation.

A patient portal is not the record. Portals typically display summaries, results, and visit notes. They rarely contain the nursing flow sheets, medication administration records, physician order sets, monitoring strips, and imaging files that decide a malpractice case. A complete request should ask, by name, for the following:

• The complete inpatient and outpatient chart, including physician orders, progress notes, consultation notes, and discharge summaries.
• Nursing notes, assessments, and flow sheets, including vital-sign records and fall-risk and skin assessments.
• The medication administration record and pharmacy records.
• Laboratory, pathology, and radiology reports, together with the actual images and slides, not the reports alone.
• Operative reports, anesthesia records, and intraoperative counts.
• Fetal monitoring strips and labor-and-delivery records where a birth is involved.
• Consent forms, patient education materials, and discharge instructions.
• Itemized billing records, which often identify providers and procedures the narrative record omits.

Once a suit is filed, the electronic record’s audit trail, which shows who viewed or edited each entry and when, can be sought in discovery. It is often the document that shows whether an abnormal result was ever opened.

Illinois law also anticipates a provider who does not comply. Under 735 ILCS 5/2-622(a)(3), if a records request under the statute has been made and the provider fails to produce the records within 60 days, the complaint may be filed with an affidavit stating that fact, and the health professional’s report is then due within 90 days after the records arrive. A facility that delays records gains no time against the patient.

Step two: the independent medical review and the certificate of merit

Illinois does not allow a malpractice complaint to be filed on suspicion. Section 2-622 of the Code of Civil Procedure requires the plaintiff’s attorney, or a plaintiff proceeding without counsel, to attach to the complaint an affidavit declaring that the affiant has consulted with a health professional who the affiant reasonably believes is knowledgeable in the relevant issues, who practices or has practiced, or teaches or has taught, within the last six years in the same area of health care or medicine at issue, and who is qualified by experience or demonstrated competence in the subject of the case. The affidavit must state that the reviewing professional has determined, in a written report prepared after reviewing the medical record and other relevant material, that there is a reasonable and meritorious cause for filing the action, and that the affiant has reached the same conclusion on the basis of that review. A copy of the report, identifying the plaintiff and stating the reasons for the reviewer’s determination, must be attached. Information that would identify the reviewer may be redacted.

Several details in the statute shape how the work is done.

Who may write the report. For a defendant who is a chiropractic physician, dentist, podiatric physician, psychologist, or naprapath, the report must come from a professional licensed in the same profession with the same class of license. For all other defendants, including physicians, hospitals, and nurses, the report must come from a physician licensed to practice medicine in all its branches. The firm has addressed who qualifies to write a 2-622 report in an Illinois malpractice case in detail.

One report per defendant. Under subsection (b), a separate certificate and report must be filed as to each defendant named in the complaint, and as to each defendant added later. A report that discusses “the hospital’s care” in general terms, without addressing each defendant’s specific departures, invites a motion to dismiss.

Special theories require special certifications. Under subsection (c), a plaintiff relying on res ipsa loquitur must have the reviewer state that negligence occurred in the course of treatment, and the attorney must certify reliance on the doctrine at filing. Under subsection (d), a plaintiff relying on a failure to inform of the consequences of a procedure must certify that the reviewer concluded a reasonable health professional would have informed the patient.

Consequences run in both directions. Under subsection (g), failure to file the required certificate is grounds for dismissal under 735 ILCS 5/2-619. Under subsection (e), allegations in the affidavit made without reasonable cause and found to be untrue expose the party or attorney to the other side’s expenses and attorney fees. Under subsection (f), a reviewer who prepares a report in good faith has civil immunity for doing so.

Illinois courts treat some defects as curable and others as fatal. A missing signature or a technical omission can usually be fixed by amendment. A report that fails to explain why the claim has merit, or a reviewer who does not meet the statutory qualifications, may lead to dismissal, and whether that dismissal is with prejudice lies largely in the trial court’s discretion. The firm’s discussion of what happens when a 2-622 report is deficient collects the decisions. The lesson is simple. The report is drafted with care before filing, not repaired afterward.

As Part I notes, the reviewing professional and the expert who eventually testifies are often, but not always, the same person. We line up Illinois-qualified reviewers at the start of a matter, and we obtain the review before anything is filed, because the statute requires it and because the review is the honest test of whether a case exists.

Step three: identify the defendants and the court

The records review usually shows who made the decisions at issue. When it does not, the respondent-in-discovery procedure under 735 ILCS 5/2-402, described in Part II, lets a plaintiff obtain discovery from individuals and entities before deciding whether to name them, subject to the same limitations period. Venue in Illinois generally lies in the county where a defendant resides or where the transaction giving rise to the claim occurred. A claim arising from care at a Chicago hospital is therefore ordinarily filed in the Circuit Court of Cook County and assigned to its Law Division. Where a county, State, or federal facility is involved, the forum and the pre-suit steps differ, as Part II explains, and the government notice requirements run alongside the steps in this Part, not after them.

What to do, and what to avoid, in the meantime

Cases are often lost in the months between the injury and the filing. A few habits protect them.

• Get the medical care you need, follow the treatment plan, and keep appointments. Gaps in treatment are used later to argue that the injury resolved or that something else caused the later symptoms.
• Write a dated timeline while memory is fresh: each visit, each provider, what you were told, and when symptoms changed. Family members should write their own. Do not write on copies of the official record.
• Keep every written communication from the hospital or physician, including portal messages and disclosure letters. As Part IV explains, written notice of an injury can start the limitations period.
• Keep devices, implants, and medication containers, and photograph wounds or incision sites with the dates visible.
• Do not give a recorded statement to a hospital risk-management department or a liability insurer, and do not sign a blanket medical authorization or any release, before speaking with counsel. A release signed in the early weeks can end a claim before anyone has measured the harm.
• Stay off social media about your care. Defense counsel read it.
• Be complete and candid with your own attorney, including about prior conditions and prior claims. We can deal with facts we know. We cannot deal with surprises the defense uncovers.

The firm’s page on what to expect when working with Paul Padda Law describes what we ask of clients and what clients may expect from us during this period.

What a provider may tell you, and why it matters

Illinois has not enacted a broad statute shielding a physician’s or hospital’s statements after an adverse event from use as evidence, as several other states have. A statement by a treating provider about what went wrong may therefore be admissible in a later case. Write it down at the time, with the speaker, the date, and the words used as closely as you can recall them. The hospital’s own internal investigation is different. Under the Medical Studies Act, 735 ILCS 5/8-2101 and following, peer-review and quality-control materials are privileged and will not be produced to the patient. What the patient is entitled to is the medical record itself, which is why the records request described above comes first.

Complaints to licensing authorities are separate from a lawsuit

A patient may also file a complaint with the Illinois Department of Financial and Professional Regulation, which licenses and disciplines physicians, nurses, and other providers. A disciplinary complaint can be appropriate, and it can proceed while a civil case is pending. But it does not stop any civil deadline, it produces no compensation, and its investigative files do not substitute for the records review a malpractice case requires. Families who file a complaint should do so in addition to the steps in this Part, not instead of them.

Part VI: How Is a Medical Malpractice Recovery Calculated in Illinois?

An Illinois medical malpractice recovery is the sum of the patient’s proven economic and non-economic losses, with no statutory cap, reduced by any share of fault assigned to the patient, increased by 6 percent prejudgment interest from the date of filing, and then reduced by medical liens, case costs, and a contingent fee that may not exceed one-third.

What the jury is asked to value

Illinois divides compensatory damages into two groups. Under 735 ILCS 5/2-1109, the jury in a healing art malpractice case must itemize its verdict between them and, within economic loss, by category and by past and future amounts.

Economic loss is what can be documented: the reasonable expense of medical, hospital, rehabilitative, and caretaking services already incurred and reasonably certain to be incurred in the future; lost wages and lost earning capacity, past and future; and other measurable losses such as home modification or replacement of household services. In a catastrophic case, a life-care planner projects future care and an economist reduces it to present value. It is often the largest part of the claim.

Non-economic loss is what cannot be receipted: pain and suffering, disability and the loss of a normal life, disfigurement, and emotional distress. Illinois also lets a jury compensate an increased risk of future harm caused by the negligence, if the increased risk is proved to a reasonable degree of medical certainty. The Illinois Supreme Court approved that element in Dillon v. Evanston Hospital, 199 Ill. 2d 483 (2002). The award is measured by the probability of the future harm, not as if it were certain. The firm’s discussion of what damages can be recovered in an Illinois malpractice case describes each category.

There is no cap, and there are no punitive damages

Illinois is one of a minority of states that place no ceiling on compensatory damages in medical malpractice cases. That is a matter of constitutional law, not legislative choice. The General Assembly has enacted caps three times, and the Illinois Supreme Court has struck them down each time: in Wright v. Central Du Page Hospital Association, 63 Ill. 2d 313 (1976); in Best v. Taylor Machine Works, 179 Ill. 2d 367 (1997); and, for the 2005 caps of $500,000 against a physician and $1,000,000 against a hospital, in Lebron v. Gottlieb Memorial Hospital, 237 Ill. 2d 217 (2010). The court’s reason was that a legislative cap works as a remittitur and so invades the judiciary’s authority under the separation of powers clause of the Illinois Constitution. The firm has explained why Illinois has no caps on medical malpractice damages. A trial judge may still reduce a verdict the evidence cannot support, but no fixed number is written into the Code.

The absence of a cap has a corollary that surprises many families. Punitive damages are not available. Section 2-1115 of the Code, 735 ILCS 5/2-1115, provides that in any case seeking damages for medical, hospital, or other healing art malpractice, no punitive, exemplary, vindictive, or aggravated damages shall be allowed. When the General Assembly amended the Wrongful Death Act in 2023 to allow punitive damages in death cases generally, it expressly excluded healing art malpractice. A malpractice case compensates. It does not punish, however serious the conduct. The two exceptions to the no-cap rule appear in Part II: awards against the State of Illinois in the Court of Claims are capped by 705 ILCS 505/8(d), and claims against the United States under the Federal Tort Claims Act carry no punitive damages by federal statute.

Comparative fault and cases with more than one defendant

Illinois follows modified comparative fault under 735 ILCS 5/2-1116. If the trier of fact finds the patient’s own fault to be more than 50 percent of the proximate cause of the injury, the patient recovers nothing. If the patient’s fault is 50 percent or less, the damages are reduced in proportion. In a malpractice case the argument usually is that the patient delayed seeking care, missed follow-up appointments, did not take a prescribed medication, or gave an incomplete history. The defense must prove that the patient’s conduct was a proximate cause of the injury, not merely that the patient was imperfect, and the records showing what the patient was told, and when, answer it. These fault rules govern every Illinois injury case, including the motor vehicle and premises claims handled by the firm’s Chicago personal injury lawyers. In a malpractice case, though, the patient’s compliance is judged against instructions the provider had a duty to give clearly.

When several defendants are found liable, 735 ILCS 5/2-1117 decides who pays what. All defendants found liable are jointly and severally liable for the patient’s past and future medical expenses, so each can be made to pay the whole of that category. For all other damages, a defendant whose fault is less than 25 percent of the total pays only its own share. A defendant whose fault is 25 percent or more is jointly and severally liable for the whole. The distinction matters when one defendant is uninsured, underinsured, or immune, and it is one reason a complaint is framed carefully around each defendant’s actual role.

Prejudgment interest

For actions filed on or after July 1, 2021, 735 ILCS 5/2-1303(c) requires the court to add prejudgment interest at 6 percent a year to a personal injury or wrongful death judgment, calculated on the compensatory damages awarded and running from the date the action was filed. Interest accrues for no more than five years. It is tolled if the plaintiff voluntarily dismisses and refiles. It is not available against the State, a unit of local government, or other governmental entities.

The statute also contains a settlement mechanism that shapes negotiations from the first year of a case. If the defendant makes a written settlement offer within 12 months after filing, and the plaintiff does not accept it within 90 days or rejects it, prejudgment interest is calculated only on the difference between the judgment and that offer. If the judgment is equal to or less than the offer, no prejudgment interest is added. An early written offer is both an opportunity and a way for the defendant to shift risk, and it has to be judged with the interest consequence in view. The firm’s discussion of how the Illinois 6 percent prejudgment interest statute affects a Chicago injury settlement works through examples. Separately, under 735 ILCS 5/2-1303(a), a judgment draws post-judgment interest at 9 percent a year from entry until paid, or 6 percent when the judgment debtor is a unit of local government or other governmental entity.

From verdict to net recovery

A verdict or settlement figure is not the amount a family receives. Several adjustments follow, some required by statute and some by contract.

Health care liens. Under the Health Care Services Lien Act, a hospital or professional that treated the patient’s injury holds a lien on the recovery for its reasonable charges. But 770 ILCS 23/10(a) limits the total of all such liens to 40 percent of the verdict, judgment, or settlement, and subsection (c) provides that no single category of lienholder, such as physicians or hospitals, may receive more than one-third. Lienholders share proportionately within those limits, and the statute contains further allocation rules when the liens would otherwise exceed the ceiling. The firm has written about the the Illinois Health Care Services Lien Act. The same limits apply to a malpractice recovery.

Insurance and government reimbursement. Medicare, Medicaid, and many employer health plans have reimbursement rights under federal law or plan terms for the injury-related care they paid for. Resolving those claims, and negotiating them where the law allows, is part of finishing a case.

The collateral source rule and its malpractice exception. At trial, Illinois follows the collateral source rule. Under Wills v. Foster, 229 Ill. 2d 393 (2008), the patient may present the full reasonable value of medical services whether or not an insurer paid a discounted amount. After a verdict in a malpractice case, however, 735 ILCS 5/2-1205 lets the defendant apply within 30 days to reduce the judgment by 100 percent of medical, hospital, and caretaking charges, and 50 percent of lost-wage or disability benefits, that were paid or payable to the patient from other sources. The reduction does not apply to the extent the paying source has a right of recoupment through subrogation, trust agreement, or lien. It may not reduce the judgment by more than half. The judgment is increased by the premiums the patient paid for the benefits in the two years before the injury and in the future. And there is no reduction for charges directly attributable to the negligence the jury found. Because most health insurers and government programs assert reimbursement rights, the statute reaches less than its text suggests. It applies to judgments and not to settlements, which is one reason the two are valued differently.

Costs and the fee. Medical malpractice cases are expensive to prepare. Records, expert reviews, expert testimony, depositions, and trial exhibits are ordinarily advanced by the firm and repaid from the recovery. The attorney’s fee is capped by statute. Under 735 ILCS 5/2-1114, the total contingent fee in a medical malpractice action may not exceed 33 1/3 percent of all sums recovered, and future damages payable in installments are reduced to a lump-sum value for that calculation. How costs are handled if there is no recovery is a matter for the written fee agreement. Ask before signing.

From gross verdict to net recovery: the adjustments Illinois law can require

The table below lists the adjustments described in this Part in the order they usually apply. It summarizes the governing rules. It is not a calculation for any particular case.

Damages when the patient has died

When the negligence caused a death, two measures of damages apply. Under the Wrongful Death Act, 740 ILCS 180/2, the jury may award the surviving spouse and next of kin fair and just compensation for their pecuniary injuries, which the statute defines to include grief, sorrow, and mental suffering, together with the loss of the decedent’s support, services, society, and companionship. The court then distributes the award among the beneficiaries according to each one’s dependency on the decedent. Under the Survival Act, 755 ILCS 5/27-6, the estate recovers the losses the patient sustained before death, including medical expenses, lost earnings, and conscious pain and suffering. The personal representative files the two actions together. The firm has addressed who can file a wrongful death malpractice claim in Chicago separately.

How we assess value

Anyone who quotes a value before reading the records is guessing. The value of a malpractice case depends on the severity and permanence of the injury, the cost of care already incurred and reasonably expected in the future, the effect on earning capacity, the strength of the liability and causation evidence, the venue, and the insurance and assets available to satisfy a judgment. In our office that assessment is built from the same records that support the certificate of merit, with help from treating physicians, life-care planners, and economists as the case requires. We do not settle a case before the full extent of the injury is understood, because settling too early almost always means settling for too little, and we prepare each case for trial so that the defense values it that way.

Part VII: How Does an Illinois Malpractice Case Proceed, and How Do You Work With a Lawyer?

An Illinois medical malpractice case moves from a records review and certificate of merit to a complaint in the circuit court, then through written discovery, depositions, expert disclosures, and motions, and finally to mediation, settlement, or a jury trial. In Cook County the process commonly takes from about eighteen months to several years, and most cases settle before a verdict.

Filing and the defendants’ first response

Once the steps in Part V are complete, the complaint is filed with the 2-622 affidavit and report attached. For care at a Chicago hospital, the case is ordinarily filed in the Law Division of the Circuit Court of Cook County, which sits at the Richard J. Daley Center, and a jury is demanded at filing. Each defendant is served and given time to respond.

Defendants in malpractice cases rarely answer at once. The first filings are usually motions: under 735 ILCS 5/2-615, attacking the sufficiency of the complaint; under 735 ILCS 5/2-619, raising affirmative matter such as the statute of limitations, the statute of repose, governmental immunity, or a defect in the 2-622 report; and, where the report’s author is challenged, motions aimed at the reviewer’s qualifications. The judge decides these motions on the papers and argument. Surviving them is the first test of the preparation that preceded filing. Only after the pleadings are settled do defendants answer and does discovery begin in earnest.

Discovery

Discovery in a malpractice case is long because the evidence is technical and scattered. The Illinois Supreme Court Rules govern it. The parties exchange written interrogatories and requests for production, which in these cases reach the medical record, hospital policies, staffing records, credentialing files to the extent they are not privileged, and the electronic audit trail. Depositions of the parties, the treating providers, the nurses, and the family follow. Under Illinois Supreme Court Rule 206(d), a discovery deposition is limited to three hours absent agreement or court order, which puts a premium on preparation. Privilege disputes under the Medical Studies Act are common, and the court decides document by document what the hospital must produce.

Expert discovery comes last and counts for the most. Each side must disclose its controlled expert witnesses and the substance of their opinions under Illinois Supreme Court Rule 213(f)(3), and those experts are then deposed. The defense will present its own standard-of-care and causation experts, and the case is often won or lost on whose experts survive challenge and persuade. Defendants test plaintiffs’ experts against the qualification standards in 735 ILCS 5/8-2501 and, where a new scientific method is involved, against the general-acceptance standard in Illinois Rule of Evidence 702. An expert excluded late in a case can end it, which is one reason the choice of reviewer at the outset is made with such care. For the reasons described in Part II, we treat the defense expert’s deposition as the trial. We prepare for it from the complete chart and the medical literature, and we commit the expert to positions on the record before the case reaches a courtroom.

Summary judgment, mediation, and settlement

After expert discovery, a defendant may move for summary judgment under 735 ILCS 5/2-1005, arguing that no genuine issue of fact remains on duty, breach, causation, or agency. Cases that survive are ordinarily referred to or voluntarily submitted to mediation, often before a retired judge with experience in medical cases. Most cases that reach this stage settle, because both sides now know the evidence. Settlements involving a minor or a decedent’s estate require court approval, and under 740 ILCS 180/2(b) the court distributes a wrongful death recovery among the surviving spouse and next of kin according to their dependency.

Settlement value is driven by trial risk. Hospitals and their insurers track which firms actually try cases. A defendant that believes the plaintiff is not ready to try the case has little reason to make a fair offer. That is why we prepare every case for trial, even though most settle. The prejudgment interest statute described in Part VI adds a second consideration. A written settlement offer made within twelve months of filing carries interest consequences that must be weighed at the time, not in hindsight.

Trial

A medical malpractice trial in Cook County is tried to a jury of twelve. In Kakos v. Butler, 2016 IL 122022, the Illinois Supreme Court held that a statute cutting civil juries to six members violated the constitutional right to a jury trial, and a civil verdict in Illinois must be unanimous. Trials in these cases commonly run one to three weeks. The plaintiff presents the treating providers, the experts, the patient and family, and the damages witnesses. The defense presents its own experts and the providers’ account of their judgment. The jury is instructed under the Illinois Pattern Jury Instructions on professional negligence, institutional negligence where pleaded, proximate cause, comparative fault, and damages, and it returns an itemized verdict as 735 ILCS 5/2-1109 requires. Post-trial motions follow under 735 ILCS 5/2-1202, and either side may appeal to the Illinois Appellate Court, First District, which reviews Cook County judgments.

How long it takes

Families should plan for a long process. The records review and certificate of merit usually take several months before anything is filed. Motions on the pleadings can take months more. Discovery in a contested case often lasts one to two years, and trial dates in the Law Division are set well in advance. A malpractice case in Chicago commonly takes from about eighteen months to several years to resolve, longer if it is tried and appealed. We do not rush a case to settlement before the injury is fully understood, and we keep clients informed at each stage so that the passage of time is not a mystery. The firm’s page describing your case step by step sets out the pre-suit phases of an injury claim. A malpractice case adds the certificate-of-merit and expert layers described in this guide.

Working with a lawyer

The first meeting. Bring the timeline described in Part V, any records or discharge papers you already have, every written communication from the hospital, and the names of every facility and provider involved. Expect detailed questions about dates, because the deadlines in Part IV are calculated from them. A careful lawyer will also tell you, once the review is done, if the facts do not support a claim. That answer is a service. It spares a family years of litigation over a case that an expert will not support.

The fee agreement. Illinois caps the contingent fee in a medical malpractice case at 33 1/3 percent of the recovery under 735 ILCS 5/2-1114. There is no attorney fee unless there is a recovery. Case costs, which are substantial in these cases, are advanced by our firm, and the written agreement states how they are handled if the case does not succeed. Read that provision and ask about it.

Communication. The most common complaint patients have about lawyers is that their calls are not returned. Our commitment is regular updates as the case moves, direct access to the lawyers and staff handling the file, and prompt responses when we are in court or in a deposition, in plain language rather than legal jargon. In return, we ask clients to be fully candid about their history, to follow their physicians’ treatment plans, to refer any insurer or risk-management contact to us, and to stay off social media about their case.

Questions to ask any malpractice lawyer

The answers will tell you a great deal.

• Who will review my records, and what are that person’s qualifications?
• Have you tried medical malpractice cases to verdict in Cook County?
• Who will handle my case day to day, and how will I reach that person?
• How are costs handled if there is no recovery?
• Have you handled claims against county, State, or federal facilities, and how do those differ?
• What is the earliest deadline in my case, and how did you calculate it?

About the author

Paul Padda is the founding attorney of Paul Padda Law Injury Attorneys. He holds a Juris Doctor from the University of Illinois College of Law and a Master of Laws from the London School of Economics, with earlier degrees from the University of Chicago and Oxford University. He began his career at the United States Department of Justice in Washington, D.C., litigating complex civil cases in federal trial and appellate courts, and later served as a federal prosecutor. He is licensed in Illinois, Nevada, California, and the District of Columbia, and is admitted to the Illinois Supreme Court and the United States District Court for the Northern District of Illinois. He holds the AV Preeminent rating from Martindale-Hubbell, is a member of the Multi-Million Dollar Advocates Forum, and is a Fellow of the American Bar Foundation. The firm’s Chicago office is at 155 North Wacker Drive, Suite 4250, Chicago, Illinois 60606. His full biography is on the firm’s Paul S. Padda page.

Frequently asked questions

What is considered medical malpractice in Illinois?

Medical malpractice in Illinois is professional negligence by a licensed health care provider: a departure from the knowledge, skill, and care a reasonably careful provider would use in similar circumstances, which proximately causes injury or death. A bad outcome alone is not malpractice. The standard of care and the departure must ordinarily be proved through qualified expert testimony.

What four things must be proved in an Illinois medical malpractice case?

The patient must prove a duty of care arising from the provider-patient relationship, a breach of the applicable standard of care, proximate causation linking the breach to the injury, and actual damages. Each element must be established by a preponderance of the evidence, and under Illinois law the standard of care and breach are proved through expert testimony.

How long do I have to file a medical malpractice lawsuit in Illinois?

Under 735 ILCS 5/13-212(a), an adult generally must file within two years of knowing, or reasonably having reason to know, of the injury and its wrongful cause, and never more than four years after the negligent act. A child injured before age 18 has eight years, but not past the 22nd birthday, under 735 ILCS 5/13-212(b).

Do I need a certificate of merit to sue for malpractice in Illinois?

Yes. Under 735 ILCS 5/2-622, the complaint must be accompanied by an attorney’s affidavit and a written report from a qualified health professional who reviewed the records and found a reasonable and meritorious cause for the action, with a separate report for each defendant. Failure to file a sufficient certificate is grounds for dismissal.

Does Illinois cap medical malpractice damages?

No. The Illinois Supreme Court struck down statutory caps on non-economic damages in Lebron v. Gottlieb Memorial Hospital, 237 Ill. 2d 217 (2010), as a violation of the separation of powers. Compensatory damages are awarded in the amount the evidence supports. Punitive damages, however, are barred in healing art malpractice cases by 735 ILCS 5/2-1115.

What are the odds of winning a medical malpractice case?

National studies of insurer data show that most malpractice claims close without any payment and that only a small share are decided by a jury. Illinois’s certificate-of-merit requirement means filed cases have already passed an independent medical review. The odds in any case depend on the records, the expert opinions on breach and causation, and preparation for trial.

Can I sue a hospital in Illinois for a doctor’s mistake?

Often, yes. A hospital is liable for the negligence of its employees. Under Gilbert v. Sycamore Municipal Hospital, 156 Ill. 2d 511 (1993), it may also be liable for an independent-contractor physician it held out as its agent when the patient relied on the hospital, and it is directly liable for its own institutional negligence in credentialing, staffing, or policy.

What if the malpractice happened at a VA, county, or state hospital in Chicago?

Different rules apply. A VA claim proceeds against the United States under the Federal Tort Claims Act, starting with an administrative claim within two years. Claims against Cook County Health face immunities for failure to diagnose. Claims against a State facility like the University of Illinois Hospital go to the Court of Claims, with one-year notice and a capped award.

How much does a Chicago medical malpractice lawyer cost?

Illinois law caps the contingent fee in a medical malpractice action at 33 1/3 percent of all sums recovered under 735 ILCS 5/2-1114. At Paul Padda Law Injury Attorneys the consultation is free, the firm advances case costs, and no attorney fee is owed unless there is a recovery. Ask how costs are handled if the case does not succeed.

How long does a medical malpractice case take in Cook County?

Longer than most injury cases. The records review and certificate of merit take months before filing, discovery in a contested case often lasts one to two years, and trial dates are set well in advance. A Chicago malpractice case commonly takes from about eighteen months to several years, and longer if it is tried and appealed.

A closing word

If the care you or a family member received in Chicago or elsewhere in Illinois left you worse rather than better, the next useful step is not more searching. It is a review of the records by a licensed Illinois attorney who can tell you whether the facts support a claim and, if they do, which deadline governs it. Call Paul Padda Law Injury Attorneys at (312) 702-7000 or schedule a free consultation online. We will listen, explain your rights under Illinois law, and give you a candid assessment.

This guide is general information, not legal advice. Reading it, calling the office, or submitting a form does not by itself create an attorney-client relationship. This guide is attorney advertising. Prior results do not guarantee a similar outcome. The law described here is current as of the date at the top of this guide and may change. Consult a licensed Illinois attorney about your own situation.