J9355 – Injection, trastuzumab, excludes biosimilar, 10 mg
HCPCS Level II code · J codes: Drugs Administered Other Than Oral Method
HCPCS codeJ9355
- Long description
- Injection, trastuzumab, excludes biosimilar, 10 mg
- Short description
- Inj trastuzumab excl biosimi
- Pricing indicator
51Drugs- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
O1EOther drugs- ASC
- Approved for ambulatory surgical centers
- Added
- January 1, 2000
- Last change
- July 1, 2019 – No change
Frequently asked questions
What is HCPCS code J9355?
J9355 is a HCPCS Level II code for injection, trastuzumab, excludes biosimilar, 10 mg.
Does Medicare cover J9355?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby J codes
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- J9349 – Injection, tafasitamab-cxix, 2 mg
- J9350 – Injection, mosunetuzumab-axgb, 1 mg
- J9351 – Injection, topotecan, 0.1 mg
- J9352 – Injection, trabectedin, 0.1 mg
- J9353 – Injection, margetuximab-cmkb, 5 mg
- J9354 – Injection, ado-trastuzumab emtansine, 1 mg
- J9356 – Injection, trastuzumab, 10 mg and hyaluronidase-oysk
- J9357 – Injection, valrubicin, intravesical, 200 mg
- J9358 – Injection, fam-trastuzumab deruxtecan-nxki, 1 mg
- J9359 – Injection, loncastuximab tesirine-lpyl, 0.075 mg
- J9360 – Injection, vinblastine sulfate, 1 mg
- J9361 – Injection, efbemalenograstim alfa-vuxw, 0.5 mg
- J9362 – Injection, trabectedin, 0.01 mg
- J9370 – Vincristine sulfate, 1 mg
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.