MedicaidAdministrativeMedium impact
UPDATE: Revisions to the Comprehensive Billing Guide for Medicaid Managed Care Services- Version 35.0
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
Nov 21, 2025
We identified it
Jun 20, 2026
Summary
Illinois has released Version 35.0 of the Comprehensive Billing Guide for Medicaid Managed Care Services with multiple updates including new genetic counselor billing codes, telehealth guidance, SBIRT service billing requirements, and updated MCO contact information. The changes affect various provider types including FQHC, RHC, SUPR, HCBS waiver providers, and community behavioral health services.
Action Required
Immediately: Billing teams should download and review Version 35.0 of the IAMHP Comprehensive Billing Manual from the Illinois HFS website. Update billing procedures for genetic counselor services (change COS from 100 to 144), implement new telehealth billing guidance, review SBIRT service billing requirements for SUPR providers, and update MCO contact information for Aetna Better Health and Blue Cross Community Health Plan. FQHC, RHC, and ERC providers must include Rendering Provider NPI on Meridian claims.