MedicaidAdministrativeMedium impact
Update to Chapter 100, General Policy and Procedures
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
Jul 1, 2005
We identified it
Jun 21, 2026
Summary
Illinois Healthcare and Family Services updated Chapter 100 with new error code explanations and reminded providers of the 12-month timely filing policy for all claims. The department also changed its name from Department of Public Aid (DPA) to Healthcare and Family Services (HFS).
Action Required
Immediately: Billing team should access the updated Chapter 100, Appendix 5 error code explanations at the HFS website to understand new claim rejection codes. Ensure all claims are submitted within 12 months of service date as both initial and resubmitted claims received after 12 months will not be paid. Update any references from Department of Public Aid (DPA) to Healthcare and Family Services (HFS) in billing systems and documentation.