MedicaidBilling CodesHigh impact
Maryland Medical Assistance Program ICD-10 Implementation Policy
Maryland Medicaid·MD·Provider Transmittal
We identified it
Jun 20, 2026
Summary
Maryland Medical Assistance Program (Medicaid) is implementing ICD-10 diagnostic coding requirements. Providers must transition from ICD-9 to ICD-10 codes for all diagnostic coding and billing submissions to Maryland Medicaid.
Action Required
Immediately: Billing team must update all systems to use ICD-10 diagnostic codes instead of ICD-9 for Maryland Medicaid claims. Update billing software, encounter forms, and EMR templates to support ICD-10 coding. Train staff on ICD-10 code selection and documentation requirements. Claims submitted with ICD-9 codes will be rejected.