State litigation guide · Illinois

Medical Malpractice Lawsuit in Illinois

Time limits apply in Illinois. Find out if you still qualify.

Free Case Review

Check your eligibility — free

Answer 2-3 quick questions to review your potential case.

People's Justice Research TeamUpdated July 20, 2026Fact-checked

Verified against court and regulatory records · No upfront fees · Your information is never sold

Statute of limitations — Illinois

735 ILCS 5/13-212: 2-year SOL from discovery; 4-year repose from act. Foreign objects: 2 years from discovery, no repose. Minors under 18: tolled until 18, but no later than 8 years after the act. Healthcare affidavit required at filing under 735 ILCS 5/2-622.

2 years from discovery; 4-year repose; healthcare affidavit required at filing

Filing venue

Where to File in Illinois

Statute of Limitations: Illinois requires medical malpractice claims to be filed within 2 years of the date the claimant knew or reasonably should have known of the injury, subject to an absolute 4-year statute of repose from the date of the negligent act. For minors under 18, the SoL is tolled until age 18, but the 4-year repose still applies (except for minors under 8, who have until age 8). 735 ILCS 5/13-212 governs.

Non-Economic Damages Cap: Illinois had a $500,000 cap on non-economic damages against physicians and a $1 million cap against hospitals, but the Illinois Supreme Court struck these caps as unconstitutional in Lebron v. Gottlieb Memorial Hospital (2010). Illinois currently has no cap on non-economic damages in medical malpractice cases. Cook County (Chicago) juries have historically returned high verdicts.

Pre-Suit Requirements: Illinois requires a Certificate of Merit (Section 2-622 of the Code of Civil Procedure). The plaintiff must attach a certificate from a licensed healthcare professional attesting — after review of records — that there is a reasonable and meritorious cause for filing. The certificate must include a written report from the reviewing professional. Failure to file results in dismissal without prejudice.

Venue: Illinois medical malpractice cases are filed in the Circuit Court of the county where the alleged negligence occurred, where the defendant resides, or where the defendant's principal place of business is located. Cook County Circuit Court handles the largest volume of medical malpractice cases. Venue transfer for forum non conveniens is governed by 735 ILCS 5/2-104.

Illinois data

Exposure in Illinois

Illinois Supreme Court struck down malpractice damage caps as unconstitutional in 2010 (Lebron v. Gottlieb Memorial Hospital)

No non-economic cap

Source: Lebron v. Gottlieb Memorial Hospital (Ill. 2010)

Cook County (Chicago) is one of the most plaintiff-favorable malpractice jurisdictions in the US, with large average verdicts

Cook County

Source: Illinois trial court records

Medical resources

Clinics & Specialists in Illinois

Northwestern Memorial Hospital — Level I Trauma Center

Rush University Medical Center — Level I Trauma Center

Advocate Christ Medical Center — Level I Trauma Center

FAQ

Frequently Asked Questions

12 QUESTIONS

Medical malpractice occurs when a healthcare provider — physician, surgeon, nurse, hospital, or other licensed provider — deviates from the accepted standard of care and that deviation causes preventable harm to a patient. The standard of care is defined as what a reasonably competent provider in the same specialty would have done under the same or similar circumstances. Malpractice is not simply a bad outcome — medicine involves inherent risks, and a patient can suffer a serious complication even with perfectly delivered care. To be malpractice, the provider must have acted negligently: doing something a competent provider would not have done, or failing to do something a competent provider would have done.

Keep reading