Skip to main content

J7172 HCPCS Level II Code: Injection, marstacimab-hncq, 0.5 mg

HCPCS Level II code, maintained by CMS. Not a CPT code: CPT (HCPCS Level I) is a separate AMA code set that MedCoder does not publish. About HCPCS Level II

Compare with another codeCheck this code on a claim

Coding at a Glance

Drug products
1 NDC product
CMS cross-references
1 related code

Medicare Coverage & Payment

  • CMS short descriptor: Inj marstacim-hncq, 0.5 mg

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.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Related Codes

CMS cross-reference from deleted or non-Medicare codes

The CMS HCPCS Level II code set cross-references these codes (deleted or not valid for Medicare) to this code.

C9304 — Injection, marstacimab-hncq, 0.5 mg

Drug products (NDC)

CMS ASP NDC-HCPCS Crosswalk · 2026 Q4

Medicare Part B payment limit (ASP + 6%): $50.76

00069-2151-01 — Hympavzi — Pfizer Inc (size 1 × qty 1 (0.5 MG per billing unit))

From the CMS ASP NDC-HCPCS Crosswalk and Part B Payment Limit File. Payment limits apply per HCPCS billing code, not per package.

Contextual Map

Every relationship of J7172 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 (36)

CMS cross-reference

Change history

  • July 1, 2025 — Added to the code set [Change history]— CMS release files (code change ledger)

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, descriptors, coverage and pricing attributes Official source data
CMS HCPCS Alpha-Numeric (ANWEB) release — October 2026 quarterly update Release, file and checksum · Publisher’s page
Drug products Official source data
CMS Medicare Part B Drug Average Sales Price (ASP) Pricing Files (cms.gov/medicare/payment/part-b-drugs/asp-pricing-files) -- the NDC-HCPCS crosswalk and Part B payment limit files — 2026 Q4 (October 2026 release); FDA National Drug Code Directory, product.txt and package.txt (accessdata.fda.gov/cder/ndctext.zip) — Snapshot retrieved 2026-08-24, loaded 2026-08-24 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS HCPCS quarterly update files, ingested into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "J7172 — Injection, marstacimab-hncq, 0.5 mg." HCPCS Level II October 2026. https://medcoder.ai/hcpcs/code/j7172-injection-marstacimab-hncq-05-mg

Change history

Nearest Codes in This Family

Official HCPCS Level II classifications closest to J7172 in its code family, with their registry titles.