Medicare Coverage & Payment

CMS short descriptor: P2y inhib not presc doc reas
Medicare coverage: Carrier judgment (CMS coverage code C)
Payment category: Service not separately priced (pricing indicator 00)
BETOS: Z2 — Undefined codes
Last CMS action effective: January 1, 2017
Terminated: December 31, 2016

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 January 1, 2017.

Contextual Map

Every relationship of G9439 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 (40)

G9419 — Documentation of medical reason(s) for not including the histological type or nsclc-nos classification with an explanation (e.g. specimen insufficient or non-diagnostic, specimen does not contain cancer, or other documented medical reasons)[Sibling]— CMS HCPCS Level II code set
G9420 — Specimen site other than anatomic location of lung or is not classified as primary non-small cell lung cancer[Sibling]— CMS HCPCS Level II code set
G9421 — Primary non-small cell lung cancer lung biopsy and cytology specimen report does not document classification into specific histologic type or histologic type does not follow iaslc guidance or is classified as nsclc-nos but without an explanation[Sibling]— CMS HCPCS Level II code set
G9422 — Primary lung carcinoma resection report documents pt category, pn category and for non-small cell lung cancer, histologic type (e.g., squamous cell carcinoma, adenocarcinoma and not nsclc-nos)[Sibling]— CMS HCPCS Level II code set
G9423 — Documentation of medical reason for not including pt category, pn category and histologic type [for patient with appropriate exclusion criteria (e.g., metastatic disease, benign tumors, malignant tumors other than carcinomas, inadequate surgical specimens)][Sibling]— CMS HCPCS Level II code set
G9424 — Specimen site other than anatomic location of lung, or classified as nsclc-nos[Sibling]— CMS HCPCS Level II code set
G9425 — Primary lung carcinoma resection report does not document pt category, pn category and for non-small cell lung cancer, histologic type (e.g., squamous cell carcinoma, adenocarcinoma)[Sibling]— CMS HCPCS Level II code set
G9426 — Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration performed for ed admitted patients[Sibling]— CMS HCPCS Level II code set
and 32 more

Change history (2)

January 1, 2017 — Removed from the code set [Change history]— CMS release files (code change ledger)
and 1 more

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 — July 2026 quarterly update 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 structured 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 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.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Change history

January 1, 2017
Removed from the code set
P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
January 1, 2015
Added to the code set
P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)

Nearest Codes in This Family

Official HCPCS Level II classifications closest to G9439 in its code family, with their registry titles.

G9439 HCPCS Level II Code: P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)