J9300 HCPCS code: Injection, gemtuzumab ozogamicin, 5 mg
J9300 is the HCPCS Level II code for injection, gemtuzumab ozogamicin, 5 mg. CMS terminated J9300 on 2017-12-31; do not bill it for later dates of service. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case.
Code details
| Field | Value |
|---|---|
| Section | J codes — Drugs administered other than oral method |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1D — Chemotherapy |
| Added | 2002-01-01 |
| Last action effective | 2018-01-01 |
| Terminated | 2017-12-31 |
What changed for J9300
- 2002-01-01: J9300 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 J9300?
J9300 is the HCPCS Level II code for injection, gemtuzumab ozogamicin, 5 mg. Short descriptor: "Gemtuzumab ozogamicin inj".
Does Medicare cover J9300?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Related J93 codes
- J9301 — Injection, obinutuzumab, 10 mg
- J9302 — Injection, ofatumumab, 10 mg
- J9303 — Injection, panitumumab, 10 mg
- J9304 — Injection, pemetrexed (pemfexy), 10 mg
- J9305 — Injection, pemetrexed, not otherwise specified, 10 mg
- J9306 — Injection, pertuzumab, 1 mg
- J9307 — Injection, pralatrexate, 1 mg
- J9308 — Injection, ramucirumab, 5 mg
- J9309 — Injection, polatuzumab vedotin-piiq, 1 mg
- J9310 — Injection, rituximab, 100 mg
- J9311 — Injection, rituximab 10 mg and hyaluronidase
- J9312 — Injection, rituximab, 10 mg
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Next steps
- Run a reimbursement report for a device billed under J9300
- Watch J9300 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J9300
Sources: CMS HCPCS Level II release October 2025; 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.