MedicaidAdministrativeMedium impact
Hospital Taxonomy Codes for Outpatient Physical Therapy Billing
Illinois Medicaid - HFS·IL · Physical Therapy·Provider Notice
Effective date
Jul 1, 2020
We identified it
Jun 20, 2026
Summary
Hospitals billing outpatient physical therapy must now use specific taxonomy codes based on their enrollment status when submitting 837I claims. Hospitals enrolled for Category of Service 29 (Physical Rehabilitation) use rehabilitation taxonomy codes, while others use general acute care taxonomy codes.
Action Required
Immediately: Hospital billing teams must verify their Category of Service 29 enrollment status and update taxonomy codes for outpatient physical therapy claims on 837I transactions. Use physical rehabilitation taxonomy codes if enrolled for COS 29, or general acute care taxonomy codes (COS 24) if not enrolled. Contact Bureau of Professional and Ancillary Services at 877-782-5565 for questions.