S9451 — Exercise classes, non-physician provider, per session
S9451 is a HCPCS Level II code for exercise classes, non-physician provider, per session. 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
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for S9451
- Long descriptor
- Exercise classes, non-physician provider, per session
- Short descriptor
- Exercise class
- Added
- April 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 S9451
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If S9451 is not quite right, the correct code is very often within a few positions of it.
- S9441Asthma education, non-physician provider, per session
- S9442Birthing classes, non-physician provider, per session
- S9443Lactation classes, non-physician provider, per session
- S9444Parenting classes, non-physician provider, per session
- S9445Patient education, not otherwise classified, non-physician provider, individual, per session
- S9446Patient education, not otherwise classified, non-physician provider, group, per session
- S9447Infant safety (including cpr) classes, non-physician provider, per session
- S9449Weight management classes, non-physician provider, per session
- S9452Nutrition classes, non-physician provider, per session
- S9453Smoking cessation classes, non-physician provider, per session
- S9454Stress management classes, non-physician provider, per session
- S9455Diabetic management program, group session
- S9460Diabetic management program, nurse visit
- S9465Diabetic management program, dietitian visit
- S9470Nutritional counseling, dietitian visit
- S9472Cardiac rehabilitation program, non-physician provider, per diem
Questions about S9451
What is HCPCS code S9451?
S9451 is a HCPCS Level II code for exercise classes, non-physician provider, per session. It sits in the Temporary National Codes (Non-Medicare) section.
Does Medicare cover S9451?
The CMS HCPCS file marks S9451 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 S9451 paid under the physician fee schedule?
S9451 carries PFS status code I. Not valid for Medicare purposes. Medicare uses another code.