MedicaidBilling CodesHigh impact
MSA 21-03
Michigan Medicaid - MDHHS·MI·Provider Bulletin
Effective date
Jan 1, 2021
We identified it
Jun 20, 2026
Summary
Michigan Medicaid has implemented extensive CPT and HCPCS code updates effective January 1, 2021, adding dozens of new covered codes across all provider types. The policy also introduces retroactive coverage for COVID-19 related testing codes and aligns with new AMA E/M guidelines for office visits.
Action Required
Immediately: Billing team must update Michigan Medicaid billing system to include all new HCPCS codes listed for your provider type category. Update fee schedules and prior authorization requirements for codes marked with asterisk (*). Verify coverage dates for retroactive codes dating back to August 2020. Update E/M coding guidelines to align with 2021 AMA standards allowing time-based or medical decision making criteria for codes 99202-99215.