S9131 — Physical therapy; in the home, per diem
S9131 is a HCPCS Level II code for physical therapy; in the home, per diem. It belongs to the Temporary National Codes (Non-Medicare) section. Medicare does not pay it — see the coverage note below before you bill it.
Medicare coverage: Not payable by Medicare
Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusI
Not valid for Medicare purposes. Medicare uses another code.
Global period: XXX
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The CMS record for S9131
- Long descriptor
- Physical therapy; in the home, per diem
- Short descriptor
- Pt in the home per diem
- Added
- January 1, 2002
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to S9131
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If S9131 is not quite right, the correct code is very often within a few positions of it.
- S9122Home health aide or certified nurse assistant, providing care in the home; per hour
- S9123Nursing care, in the home; by registered nurse, per hour (use for general nursing care only, not to be used when cpt codes 99500-99602 can be used)
- S9124Nursing care, in the home; by licensed practical nurse, per hour
- S9125Respite care, in the home, per diem
- S9126Hospice care, in the home, per diem
- S9127Social work visit, in the home, per diem
- S9128Speech therapy, in the home, per diem
- S9129Occupational therapy, in the home, per diem
- S9140Diabetic management program, follow-up visit to non-md provider
- S9141Diabetic management program, follow-up visit to md provider
- S9145Insulin pump initiation, instruction in initial use of pump (pump not included)
- S9150Evaluation by ocularist
- S9152Speech therapy, re-evaluation
- S9208Home management of preterm labor, including administrative services, professional pharmacy services, care coordination, and all necessary supplies or equipment (drugs and nursing visits coded separately), per diem (do not use this code with any home infusion per diem code)
- S9209Home management of preterm premature rupture of membranes (pprom), including administrative services, professional pharmacy services, care coordination, and all necessary supplies or equipment (drugs and nursing visits coded separately), per diem (do not use this code with any home infusion per diem code)
- S9211Home management of gestational hypertension, includes administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (drugs and nursing visits coded separately); per diem (do not use this code with any home infusion per diem code)
Questions about S9131
What is HCPCS code S9131?
S9131 is a HCPCS Level II code for physical therapy; in the home, per diem. It sits in the Temporary National Codes (Non-Medicare) section.
Does Medicare cover S9131?
The CMS HCPCS file marks S9131 as "Not payable by Medicare". Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
How is S9131 paid under the physician fee schedule?
S9131 carries PFS status code I. Not valid for Medicare purposes. Medicare uses another code.