MedicaidBilling CodesMedium impact
DSS Important Message - Hospital Monthly Important Message pdf
Connecticut Medicaid (HUSKY Health)·CT·Provider Bulletin
Effective date
Apr 1, 2022
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid updated their CMAP Addendum B with 2022 HCPCS code changes effective April 1, 2022, and added four new payable COVID-19 treatment codes (M0220-M0223) with retroactive effective dates. The policy also includes updates on postpartum care extension, shared/split visits guidance, and prior authorization requirements for advanced imaging C codes.
Action Required
Immediately: Billing team must download the updated CMAP Addendum B V23.1 from www.ctdssmap.com Hospital Modernization page to ensure compliance with 2022 HCPCS changes. Verify that COVID-19 treatment codes M0220-M0223 are activated in billing system with correct retroactive effective dates (M0220/M0221: 12/8/21, M0222/M0223: 2/11/22). Update prior authorization processes to use C codes instead of CPT codes for advanced imaging in outpatient hospital settings.