MedicaidBilling CodesHigh impact
CMAP Addendum B Updated and New DRG Codes Added to Calculator 10.01.2023 pdf
Connecticut Medicaid (HUSKY Health)·CT·Coding
Effective date
Oct 1, 2023
We identified it
Jun 20, 2026
Summary
Connecticut Medical Assistance Program (CMAP) updated Addendum B with new COVID-19 vaccine codes effective 9/11/2023, added new DRG code 851 for Gender Related Procedures, and updated payment rates for procedure codes with status indicators G or K effective 10/1/2023. New COVID vaccine codes must be used while previously covered COVID codes have been end-dated.
Action Required
Immediately: Update billing system with new COVID-19 vaccine codes (90480, 91318, 91319, 91320, 91321, 91322, 91304) and stop using previously end-dated COVID vaccine codes. Download updated CMAP Addendum B V24.2 and DRG Calculator from www.ctdssmap.com Hospital Modernization page. Update DRG code 851 for Gender Related Procedures and verify payment rates for all procedure codes with status indicators G or K.