Skip to content
Dx

HCPCS Level II · Outpatient PPS (temporary codes)

C9304Injection, marstacimab-hncq, 0.5 mg

Terminated 06/30/2025

Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.

About C9304

C9304 is an HCPCS Level II code in the C series (outpatient PPS (temporary codes)), describing injection, marstacimab-hncq, 0.5 mg.

It was added to HCPCS effective 04/01/2025, and its current record took effect 07/01/2025.

It was terminated on 06/30/2025 and can't be billed for later dates of service.

Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.

Details

Short description
Inj marstacimab, 0.5 mg
Date added
04/01/2025
Action effective
07/01/2025
Termination date
06/30/2025
BETOS
O1E

Related C93xx codes

Common questions about C9304

Is HCPCS C9304 still valid?

No. C9304 was terminated on 06/30/2025.

Does Medicare cover C9304?

Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.