What Is the Section 2-622 Affidavit in Illinois Malpractice?

Understanding the Section 2-622 Affidavit in Illinois Medical Malpractice Cases

If you or a loved one suffered harm due to medical negligence in Illinois, filing a malpractice lawsuit requires more than describing what went wrong. Under 735 ILCS 5/2-622, Illinois law requires plaintiffs to attach a sworn affidavit and a written health professional’s report to their medical malpractice complaint. This procedural requirement, often called the "affidavit of merit," serves as an early screening mechanism confirming that a qualified health professional has reviewed the facts and believes the claim has merit. Missing this step can result in dismissal before a judge considers your case.

If you need guidance navigating this process, PAUL PADDA LAW is ready to help. Call 702-366-1888 or reach out to our team today.

What Does Section 2-622 Require When Filing a Malpractice Claim in Illinois?

Section 2-622 of the Illinois Code of Civil Procedure applies to any action seeking damages for injuries or death by reason of medical, hospital, or other healing art malpractice. The statute imposes a two-part filing obligation on every plaintiff.

First, the plaintiff’s attorney, or the plaintiff if proceeding pro se, must file a sworn affidavit attached to the complaint. That affidavit must declare that the affiant consulted with a health professional who the affiant reasonably believes (i) is knowledgeable in the relevant issues involved in the particular action; (ii) practices or has practiced within the last six years, or teaches or has taught within the last six years, in the same area of health care or medicine that is at issue in the particular action; and (iii) is qualified by experience or demonstrated competence in the subject of the case. Second, a written report from that health professional must accompany the affidavit, determining that there is reasonable and meritorious cause for filing the action. A separate certificate and report must be filed for each defendant named.

These requirements prevent frivolous lawsuits from burdening the court system and health care providers. For injured patients, this means you need a knowledgeable health professional on your side before filing. You can review the full text of 735 ILCS 5/2-622 for the complete statutory language.

💡 Pro Tip: Start gathering your medical records early. A health professional cannot evaluate your claim without thorough review of treatment records, imaging, lab results, and physician notes.

What Happens if You Do Not File the Affidavit on Time?

Failure to file the certificate required by Section 2-622 shall be grounds for dismissal under Section 2-619 of the Illinois Code of Civil Procedure. Defense attorneys routinely raise this issue early to seek dismissal before discovery begins.

Courts recognize situations where the affidavit cannot be filed simultaneously with the complaint. If the statute of limitations is about to expire and the plaintiff cannot obtain the required consultation before that deadline, 735 ILCS 5/2-622 provides that the certificate and report must be filed within 90 days after filing the complaint. This window offers critical breathing room, but applies only when a statute of limitations would impair the action if the complaint were not filed promptly.

Repeated failure to comply, even after a court grants additional time, can be fatal to a case. Illinois courts have granted extensions, but when a plaintiff fails to produce the documents, dismissal becomes increasingly likely.

💡 Pro Tip: The 90-day extension is not automatic. It is triggered only when the statute of limitations would otherwise impair the action. Courts interpret deadlines strictly, and missing them may result in dismissal.

How the Affidavit of Merit Affects Your Medical Malpractice Case in Chicago

Without the Section 2-622 affidavit and accompanying report, a plaintiff generally cannot establish a meritorious claim for purposes of post-judgment relief. This means the affidavit is not just a technicality at the start of litigation, it can matter later if you need to reopen or challenge a judgment under Section 2-1401.

For families in Chicago and Cook County who believe medical negligence caused serious harm, this requirement underscores why early legal action matters. Consulting with a medical malpractice attorney in Chicago who understands these procedural obligations can make the difference between a case that moves forward and one that stalls.

What the Health Professional’s Report Must Include

The written report is not a mere formality. The reviewing health professional must be knowledgeable in the relevant clinical issues and must determine that there is reasonable and meritorious cause for filing. The written health professional’s report required under Section 2-622 must clearly identify the plaintiff and the reasons for the reviewing health professional’s determination that a reasonable and meritorious cause for the filing of the action exists. The statute does not explicitly require the report to address how the health care provider deviated from the standard of care or how that deviation caused injury, though such detail may strengthen the report against defense challenges. A vague or conclusory report may invite a defense challenge. The statute permits the plaintiff to delete identifying information about the reviewing health professional.

Who Qualifies to Review the Case

Illinois law requires the reviewing professional to be someone the affiant reasonably believes: (i) is knowledgeable in the relevant issues involved in the particular action; (ii) practices or has practiced within the last 6 years, or teaches or has taught within the last 6 years, in the same area of health care or medicine that is at issue in the particular action; and (iii) is qualified by experience or demonstrated competence in the subject of the case. While the statute does not use the word "specialist," these requirements effectively ensure the reviewer has relevant and recent clinical experience in the same area of health care or medicine that is at issue in the particular action.

💡 Pro Tip: Ask about the reviewing health professional’s clinical background in the specific area of medicine involved. A surgeon reviewing a cardiology case may not satisfy the statutory requirement.

Illinois Statute of Limitations for Medical Malpractice Claims

Timing is critical in any malpractice case in Chicago or elsewhere in Illinois. Understanding the filing deadlines that apply alongside the Section 2-622 requirement helps ensure you do not lose your right to pursue compensation.

The general rule under 735 ILCS 5/13-212(a) requires filing within two years after the plaintiff knew or should have known of the injury, subject to an absolute four-year repose period. If a medical provider fraudulently concealed the malpractice, 735 ILCS 5/13-215 may extend the period to five years from discovery. For minors under age 18, 735 ILCS 5/13-212(b) allows up to eight years from the date of the injurious act, but not after the individual’s 22nd birthday. You can review Illinois statutes of limitations for additional detail.

💡 Pro Tip: The "discovery rule" does not automatically extend your deadline. Courts interpret tolling exceptions narrowly, so do not delay seeking legal counsel.

How the Statute of Limitations Interacts with the Section 2-622 Requirement

When the statute of limitations is about to expire, plaintiffs sometimes file the complaint first and rely on the 90-day window to submit the affidavit and report. This is legally recognized under 735 ILCS 5/2-622, but requires diligent follow-through. A trial court has discretion to dismiss a complaint without prejudice when the Section 2-622 certificate is not timely filed. That dismissal may still leave time to refile, but only if the statute of limitations has not run.

Why Working with a Medical Malpractice Attorney in Chicago Matters

Navigating Illinois malpractice lawsuit requirements demands both legal knowledge and clinical coordination. Your attorney must identify and retain the right health professional, secure medical records, prepare a legally sufficient affidavit, and file everything within strict deadlines.

Illinois medical negligence cases also involve complex damages calculations. Life-care plans, future medical costs, lost earnings, and pain and suffering all require careful documentation and expert testimony. To learn more, read our guide on the certificate of merit in Illinois malpractice.

💡 Pro Tip: Keep a personal timeline of every medical appointment, diagnosis, and communication with providers. This helps your legal team identify when the statute of limitations began and strengthen your affidavit.

Frequently Asked Questions

1. What is the Section 2-622 affidavit in Illinois medical malpractice cases?

What does the affidavit require?

The Section 2-622 affidavit is a sworn statement that must accompany every medical malpractice complaint filed in Illinois. It confirms that the plaintiff’s attorney consulted with a health professional who the affiant reasonably believes (i) is knowledgeable in the relevant issues involved in the particular action; (ii) practices or has practiced within the last six years, or teaches or has taught within the last six years, in the same area of health care or medicine that is at issue in the particular action; and (iii) is qualified by experience or demonstrated competence in the subject of the case. That professional must have reviewed the case and determined there is reasonable and meritorious cause for the lawsuit. A written report from that professional must also be attached, with a separate report required for each defendant.

2. What happens if I do not file the affidavit with my complaint?

Can my case be dismissed?

Yes. Under 735 ILCS 5/2-622(g), failure to file the required certificate constitutes grounds for dismissal. If the statute of limitations would have impaired your action, you generally have 90 days after filing to submit the certificate and report. Missing that deadline may result in dismissal.

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

Do different deadlines apply to different situations?

Generally, you must file within two years of discovering the injury, with an absolute limit of four years from the date of the injurious act under 735 ILCS 5/13-212(a). Exceptions exist for fraudulent concealment (five years from discovery) and for minors (eight years from the act, but not past age 22). Courts interpret these exceptions narrowly, so timely action is essential.

4. Can I refile my case if it is dismissed for a missing affidavit?

Is dismissal always permanent?

Not necessarily. Courts may dismiss a case without prejudice for failure to timely file the Section 2-622 certificate, allowing refiling. However, refiling is only possible if the statute of limitations has not expired. Repeated procedural failures may affect a court’s willingness to grant further extensions.

5. Why do I need a health professional to review my case before filing?

What purpose does the review serve?

The health professional’s review and written report serve as an early merit screening. Illinois law requires this step to confirm that a qualified individual has evaluated the facts and believes the health care provider deviated from the standard of care, providing a meritorious basis for the claim.

Protecting Your Rights After Medical Negligence in Illinois

Filing a medical malpractice claim in Illinois requires more than identifying an injury. The Section 2-622 affidavit and accompanying health professional’s report represent a mandatory procedural step that can determine whether your case survives its earliest stages. From meeting strict filing deadlines to securing the right clinical review, every detail matters.

If you believe you or a family member suffered harm from medical negligence, PAUL PADDA LAW can help you understand your options. Call 702-366-1888 or contact us today to discuss your situation.