MedicaidAdministrativeHigh impact
Clarification regarding 180 Day Time Limits for Claim Submittal
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
Jul 1, 2012
We identified it
Jun 20, 2026
Summary
Illinois Medicaid clarified that the 180-day claim submission deadline starts from the date of service (not when received by the department), affecting both initial and resubmitted claims. Claims submitted beyond 180 days from service date will be denied with error code G55.
Action Required
Immediately: Billing team must ensure all Illinois Medicaid claims are submitted within 180 days from the date of service (through date for hospital claims). Update billing system alerts to flag claims approaching the 180-day limit. Train staff that resubmissions and corrected claims are also subject to this deadline. Claims exceeding 180 days will be denied with error code G55-180 Day Timely Filing.