MedicaidBilling CodesMedium impact
Substance Use Disorder Behavioral Health Fee Schedule Update: S0109 Methadone Addition
Oregon Health Plan·OR · Psychiatry·Provider
Effective date
Jul 1, 2025
We identified it
Jun 20, 2026
Summary
Oregon Medicaid has added a new billing code S0109 for methadone 5mg doses at $0.18 per dose, effective July 1, 2025. This code can be used for both on-site dispensing and take-home doses, and should be billed in addition to existing administration and service codes.
Action Required
By July 1, 2025: Billing team must add HCPCS code S0109 to billing software for methadone 5mg doses at $0.18 per dose for Oregon Medicaid patients. Update encounter forms to include this code for substance use disorder providers. This code should be billed in addition to existing administration and service codes, not as a replacement.