MedicaidReimbursementHigh impact
DSS Important Message - CMAP Addendum B Updated
Connecticut Medicaid (HUSKY Health)·CT·Provider Bulletin
Effective date
Jul 1, 2026
We identified it
Aug 1, 2026
Summary
Connecticut CMAP Addendum B Version 27.2 has been updated effective July 1, 2026, with APC payment rate changes for procedure codes with status indicators G, K, or K1, plus new, changed, or deleted procedure codes. Outpatient hospitals must implement these changes immediately, with claims submitted before the rate change adjusted in August and new/changed codes reprocessed in future cycles.
Action Required
By August 31, 2026: Billing team must download and implement the updated CMAP Addendum B V27.2 from www.ctdssmap.com Hospital Modernization page. (1) Update billing system with new APC payment rates for all codes marked with status indicator G, K, or K1 effective July 1, 2026 (rates were loaded July 9, 2026). (2) Identify and configure any NEW procedure codes added by CMS; these will be reprocessed automatically in future claim cycles. (3) Remove or inactivate any DELETED procedure codes; mark CHANGED codes with updated status indicators (marked with X). (4) Reconcile all claims submitted before July 9, 2026 with status G/K/K1 codes—these will be automatically adjusted in the second cycle of August; monitor adjustment reports for accuracy. (5) Contact Gainwell Technologies at ctxixhosppay@gainwelltechnologies.com with questions on the updated version. Failure to update rates and codes may result in underpayment or claim rejection for dates of service on and after July 1, 2026.