J9601 — Injection, linvoseltamab-gcpt, 1 mg
J9601 is a HCPCS Level II code for injection, linvoseltamab-gcpt, 1 mg. It belongs to the Drugs Administered Other Than Oral Method section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
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 statusE
Excluded from the physician fee schedule by regulation. Payment, where it exists, comes from another fee schedule (drugs via ASP, supplies via DMEPOS, and so on).
Global period: XXX
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The CMS record for J9601
- Long descriptor
- Injection, linvoseltamab-gcpt, 1 mg
- Short descriptor
- Inj linvoseltamab-gcpt 1 mg
- Added
- April 1, 2026
- BETOS
- O1E
- Pricing indicator
- 51 — Other
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.
Drugs.
Codes adjacent to J9601
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If J9601 is not quite right, the correct code is very often within a few positions of it.
- J9381Injection, teplizumab-mzwv, 5 mcg
- J9382Injection, zenocutuzumab-zbco, 1 mg
- J9390Injection, vinorelbine tartrate, 10 mg
- J9393Injection, fulvestrant (teva), not therapeutically equivalent to j9395, 25 mg
- J9394Injection, fulvestrant (fresenius kabi) not therapeutically equivalent to j9395, 25 mg
- J9395Injection, fulvestrant, 25 mg
- J9400Injection, ziv-aflibercept, 1 mg
- J9600Injection, porfimer sodium, 75 mg
- J9999Not otherwise classified, antineoplastic drugs
- K0001Standard wheelchair
- K0002Standard hemi (low seat) wheelchair
- K0003Lightweight wheelchair
- K0004High strength, lightweight wheelchair
- K0005Ultralightweight wheelchair
- K0006Heavy duty wheelchair
- K0007Extra heavy duty wheelchair
Questions about J9601
What is HCPCS code J9601?
J9601 is a HCPCS Level II code for injection, linvoseltamab-gcpt, 1 mg. It sits in the Drugs Administered Other Than Oral Method section.
Does Medicare cover J9601?
The CMS HCPCS file marks J9601 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is J9601 paid under the physician fee schedule?
J9601 carries PFS status code E. Excluded from the physician fee schedule by regulation. Payment, where it exists, comes from another fee schedule (drugs via ASP, supplies via DMEPOS, and so on).