MedicaidAdministrativeMedium impact
Pharmacy Pilot Testing of Pharmacy Benefits Management System (PBMS)
Illinois Medicaid - HFS·IL · Pharmacy·Provider Notice
Effective date
Feb 17, 2017
We identified it
Jun 20, 2026
Summary
Illinois Medicaid is pilot testing a new Pharmacy Benefits Management System (PBMS) from February 17 to March 13, 2017, which changes how vaccine administration fees are billed and updates multiple field requirements for pharmacy claims processing. Pharmacies must now use B1/B2/B3 transactions instead of S1/S2/S3 for vaccine claims and submit administration fees in field 438-E3 with professional service code 'MA'.
Action Required
Pharmacies interested in participating in the pilot test should complete the registration form when distributed and update their billing systems to use B1/B2/B3 transactions for vaccine administration fees instead of S1/S2/S3, submit fees in field 438-E3, and use professional service code 'MA' in field 440-E5. Technical questions should be directed to PBA_POSTechSupport@changehealthcare.com or 877-553-8455.