MedicaidBilling CodesHigh impact
New Procedure Code for Billing Medical Assistance
Maryland Medicaid·MD · Family Medicine, Pediatrics, OB-GYN +1 more·Clinics
Effective date
Jul 1, 2003
We identified it
Jun 20, 2026
Summary
Multiple clinic types must transition from their current procedure codes to the new standardized code T1015 for billing Medical Assistance visits, effective July 1, 2003. This change implements HIPAA compliance by requiring standard procedure codes nationwide.
Action Required
By July 1, 2003: Billing teams at all qualifying clinic types must update billing systems to use procedure code T1015 instead of their current codes (M0008 for FQHCs, W9941 for Maryland QHCs, W9994 for Family Planning, W9940 for Children/Youth clinics). Update encounter forms and billing software rules. Old codes will be deactivated after June 30, 2003 and claims using them will be denied.