HCPCS Level II · Drugs administered other than oral method
J9331Injection, sirolimus protein-bound particles, 1 mg
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About J9331
J9331 is an HCPCS Level II code in the J series (drugs administered other than oral method), describing injection, sirolimus protein-bound particles, 1 mg.
It was added to HCPCS effective 07/01/2022.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Inj sirolimus prot part 1 mg
- Date added
- 07/01/2022
- Action effective
- 07/01/2022
- BETOS
- O1E
Related J93xx codes
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- J9303Injection, panitumumab, 10 mg
- J9304Injection, pemetrexed (pemfexy), 10 mg
- J9305Injection, pemetrexed, not otherwise specified, 10 mg
- J9306Injection, pertuzumab, 1 mg
- J9307Injection, pralatrexate, 1 mg
- J9308Injection, ramucirumab, 5 mg
- J9309Injection, polatuzumab vedotin-piiq, 1 mg
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Common questions about J9331
Is HCPCS J9331 still valid?
- Yes. J9331 is active in the CMS October 2026 HCPCS file.
Does Medicare cover J9331?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.