S9401 HCPCS code: Anticoagulation clinic, inclusive of all services except laboratory tests, per session
S9401 is the HCPCS Level II code for anticoagulation clinic, inclusive of all services except laboratory tests, per session. Its Medicare coverage code is I (Not payable by Medicare): Medicare does not pay separately under this code; another code applies.
Code details
| Field | Value |
|---|---|
| Section | S codes — Temporary national codes (non-Medicare) |
| Coverage code | I — Not payable by Medicare |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | Z2 |
| Added | 2002-04-01 |
| Last action effective | 2002-04-01 |
What changed for S9401
- 2002-04-01: S9401 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code S9401?
S9401 is the HCPCS Level II code for anticoagulation clinic, inclusive of all services except laboratory tests, per session. Short descriptor: "Anticoag clinic per session".
Does Medicare cover S9401?
Coverage code I — Not payable by Medicare. Medicare does not pay separately under this code; another code applies.
Related S94 codes
- S9430 — Pharmacy compounding and dispensing services
- S9432 — Medical foods for non-inborn errors of metabolism
- S9433 — Medical food nutritionally complete, administered orally, providing 100% of nutritional intake
- S9434 — Modified solid food supplements for inborn errors of metabolism
- S9435 — Medical foods for inborn errors of metabolism
- S9436 — Childbirth preparation/lamaze classes, non-physician provider, per session
- S9437 — Childbirth refresher classes, non-physician provider, per session
- S9438 — Cesarean birth classes, non-physician provider, per session
- S9439 — Vbac (vaginal birth after cesarean) classes, non-physician provider, per session
- S9441 — Asthma education, non-physician provider, per session
- S9442 — Birthing classes, non-physician provider, per session
- S9443 — Lactation classes, non-physician provider, per session
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Next steps
- Run a reimbursement report for a device billed under S9401
- Watch S9401 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for S9401
Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.