MedicaidBilling CodesMedium impact
COVID-19 Vaccine Billing Instructions
Illinois Medicaid - HFS·IL · Pharmacy·Provider Notice
Effective date
Sep 28, 2023
We identified it
Jun 20, 2026
Summary
Illinois Medicaid pharmacies can no longer use 'MA' in the Professional Service Code Field or bill administration fees for COVID-19 vaccines until new programming is complete. Pharmacies should bill for vaccine cost plus dispensing fee only, then void and rebill later for full payment including administration fee.
Action Required
Immediately: Pharmacies billing Illinois Medicaid must stop using 'MA' in Professional Service Code Field for COVID-19 vaccines. Bill only vaccine cost plus dispensing fee (no administration fee) until further notice. Monitor for follow-up notice to begin void/rebill process for full payment. Contact pharmacy consultant at 877-782-5565 with questions.