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C9304 HCPCS Level II Code: Injection, marstacimab-hncq, 0.5 mg

Coding at a Glance

CMS cross-references
1 related code

Medicare Coverage & Payment

  • CMS short descriptor: Inj marstacimab, 0.5 mg
  • Medicare coverage: Special coverage instructions apply (CMS coverage code D)
  • Pricing indicator: 53
  • BETOS: O1E — Other drugs
  • Last CMS action effective: July 1, 2025
  • Terminated: June 30, 2025

Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.

Code Set: Removed from the code set — not valid on or after July 1, 2025.

Change history

  • July 1, 2025
    Removed from the code set
    Injection, marstacimab-hncq, 0.5 mg
  • April 1, 2025
    Added to the code set
    Injection, marstacimab-hncq, 0.5 mg

Related Codes

CMS cross-reference: code to use instead

The CMS HCPCS Level II code set carries an explicit cross-reference from this code (deleted or not valid for Medicare) to this code. A cross-referenced code can itself have been retired since; a terminated target is marked.

J7172 — Injection, marstacimab-hncq, 0.5 mg

Contextual Map

Every relationship of C9304 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Nearest codes (24)

CMS cross-reference

Change history (2)

  • July 1, 2025 — Removed from the code set [Change history]
  • and 1 more

Nearest Codes in This Family

Official HCPCS Level II classifications closest to C9304 in its code family, with their registry titles.