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G9101 HCPCS Level II Code: Oncology; disease status; gastric cancer, limited to adenocarcinoma as predominant cell type; post r1 or r2 resection (with or without neoadjuvant therapy) with no evidence of disease progression, or…

Medicare Coverage & Payment

  • CMS short descriptor: Onc dx gastric p r1-r2noprog
  • Medicare coverage: Carrier judgment (CMS coverage code C)
  • Payment category: Service not separately priced (pricing indicator 00)
  • BETOS: P7B — Oncology - other
  • Last CMS action effective: January 1, 2007

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.

Contextual Map

Every relationship of G9101 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)

Change history

  • January 1, 2006 — Added to the code set [Change history]— CMS release files (code change ledger)

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, 2006
    Added to the code set
    Oncology; disease status; gastric cancer, limited to adenocarcinoma as predominant cell type; post r1 or r2 resection (with or without neoadjuvant therapy) with no evidence of disease progression, or metastases (for use in a medicare-approved demonstration project)

Nearest Codes in This Family

Official HCPCS Level II classifications closest to G9101 in its code family, with their registry titles.