MedicaidAdministrativeMedium impact
UPDATE: New Sections Published under the Comprehensive Billing Guide for Medicaid Managed Care Services
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
May 3, 2021
We identified it
Jun 20, 2026
Summary
Illinois has published Version 22 of the Comprehensive Billing Guide for Medicaid Managed Care services, adding new sections for school-based health centers, birthing centers, and specialized mental health facilities. Key updates include clarified skilled nursing facility billing for Medicare-covered services, emergency transportation claims transitioning to fee-for-service billing, and updated pharmacy provider information with new Plan Bin/PCN GroupID details.
Action Required
Immediately: Billing team should review Version 22 of the IAMHP Comprehensive Billing Guide on the IAMHP website to understand updated Medicaid MCO billing requirements. Update emergency transportation billing procedures to submit claims to HFS fee-for-service effective April 1, 2021. Pharmacy providers must update system with new Plan Bin/PCN GroupID information for Aetna Better Health (formerly IlliniCare).