C9121 HCPCS Level II code: Injection, argatroban, per 5 mg
CMS terminated C9121: its last date of service was Dec 31, 2016. It stays here for looking up older claims; newer services need a current code.
Official description
C9121Injection, argatroban, per 5 mg
Short description: Injection, argatroban
HCPCS · United States
Notes for C9121
As CMS prints them, with any note C9121 takes from the headings above it.
Note
- CMS processing note 0093: "C" CODES ARE UNIQUE TEMPORARY PRICING CODES THAT WERE INITIALLY ESTABLISHED BY CMS FOR THE HOSPITAL OUTPATIENT PROSPECTIVE PAYMENT SYSTEM (OPPS). THE "C" CODES ARE USED ON MEDICARE OPPS CLAIMS BUT MAY ALSO BE RECOGNIZED ON CLAIMS FROM OTHER PROVIDERS OR BY OTHER PAYMENT SYSTEMS.
Medicare details
The indicators CMS publishes with C9121 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- Statute
- Type of service
- Medical care; Lump sum purchase of DME, prosthetics, orthotics
- BETOS category
- Other drugs
- Coverage statute
- 1833(T)
- Cross-reference
- See J0883
- Added
- Jan 1, 2003
- Terminated after
- Dec 31, 2016
Where C9121 sits
- 1C codesOutpatient prospective payment system
- 2Terminated C9121Injection, argatroban, per 5 mg
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is HCPCS code C9121 still valid?
No. CMS terminated C9121; its last date of service was Dec 31, 2016. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover C9121?
CMS lists C9121’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Statute”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside C9121
All C codesC9095Inj, tebentafusp-tebn, 1 mcgC9096Injection, filgrastim-ayow, biosimilar, (releuko), 1 microgramC9097Inj, faricimab-svoa, 0.1 mgC9098Ciltacabtagene autoleucel, up to 100 million autologous b-cell maturation antigen (bcma) directed car-positive t cells, including leukapheresis and dose preparation procedures…C9101Injection, oliceridine, 0.1 mgC9113Injection, pantoprazole sodium, per vialC9122Mometasone furoate sinus implant, 10 micrograms (sinuva)C9132Prothrombin complex concentrate (human), kcentra, per i.u. of factor ix activityC9133Factor ix (antihemophilic factor, recombinant), rixubis, per i.u.C9134Factor xiii (antihemophilic factor, recombinant), tretten, per 10 i.u.C9135Factor ix (antihemophilic factor, recombinant), alprolix, per i.u.C9136Injection, factor viii, fc fusion protein, (recombinant), per i.u.