MedicaidBilling CodesHigh impact
MMP 23-38: Updates to the MDHHS Medicaid Provider Manual
Michigan Medicaid - MDHHS·MI · Physical Therapy, Occupational Therapy, Speech Therapy·Medical Policy
Effective date
Jul 1, 2023
We identified it
Jun 20, 2026
Summary
Michigan Medicaid updated therapy billing requirements effective July 1, 2023, requiring specific modifiers for all therapy services (GN for speech, GO for occupational, GP for physical) plus modifiers 96/97 for habilitative/rehabilitative services and TS for maintenance therapy. Claims without proper modifiers may be denied.
Action Required
Immediately: Billing team must update therapy claim submissions to include required modifiers - GN for speech therapy, GO for occupational therapy, GP for physical therapy, plus modifier 96 for habilitative services, 97 for rehabilitative services, and TS for maintenance therapy. Update billing software rules and staff training. Claims without these modifiers will be denied by Michigan Medicaid.