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How to File a Workers' Compensation Claim in Chicago

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Immediate Steps After an Injury

Notify your employer of the injury in writing within 45 days, then obtain a copy of the employer's First Report of Injury (FROI) and any medical records related to the incident.

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Gather Required Documentation

Collect the completed FROI, medical reports, doctor's notes, and any witness statements. You'll also need proof of wages, such as recent pay stubs, to calculate benefits.

Complete the Claim Forms

Fill out the Illinois Workers' Compensation Claim Form (Form WC‑1) and the Employer's Report of Injury (Form WC‑2). Both can be downloaded from the Illinois Workers' Compensation Commission (IWCC) website or obtained from the employer's HR department.

Submit the Claim

Send the completed forms and supporting documents to the IWCC within 90 days of the injury. Use certified mail or the IWCC's online filing portal to ensure proof of delivery.

What Happens After Submission

The IWCC will assign a case number and may request additional information. An adjudicator will review the claim, and the employer's insurer will be notified of the pending case.

Potential Outcomes

If approved, you'll receive medical benefits and wage replacement based on Illinois law. If denied, you can request a hearing before the IWCC within 30 days of the denial notice.

Key Deadlines to Remember

ActionDeadline
Notify employerWithin 45 days
File claim with IWCCWithin 90 days
Request hearing after denialWithin 30 days

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