MedicaidAdministrativeMedium impact
Claims for Illinois Department of Corrections (IDOC) and Illinois Department of Juvenile Justice (IDJJ) Inmates
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
May 1, 2007
We identified it
Jun 21, 2026
Summary
Illinois healthcare providers must follow specific billing procedures for Department of Corrections (IDOC) and Department of Juvenile Justice (IDJJ) inmates. Effective May 1, 2007, all hospital services for inmates must be billed directly to HFS (Healthcare and Family Services) rather than to IDOC/IDJJ medical vendors.
Action Required
Illinois providers only: Verify inmate eligibility shows 'Eligible for Limited IDOC Hospital Benefit Package' message in REV/MEDI systems before billing. Bill all IDOC/IDJJ inmate services directly to HFS using UB-92 paper forms or 837I/837P electronic formats. Ensure IDOC/IDJJ representative accompanies inmate during services - if not present, treat as private pay. Look for Office Number 195 in case identification to confirm inmate status. Submit hardcopy claims to HFS if eligibility message doesn't appear.