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G9131

Onc dx brst unknown nos

✓ CURRENT — JULY 2026
Source: CMS
Imported: Aug 10 2026

Full descriptor

Oncology; disease status; invasive female breast cancer (does not include ductal carcinoma in situ); adenocarcinoma as predominant cell type; extent of disease unknown, staging in progress, or not listed (for use in a medicare-approved demonstration project)

Details

Code
G9131
Short descriptor
Onc dx brst unknown nos
Code set
HCPCS Level II
Release
July 2026
Status
Active
Added
Jan 1 2007

Nearby codes

Code sets are published in blocks, so neighbours are usually related.

G9130

Onc dx multi myeloma unknown

G9132

Onc dx prostate mets no cast

G9129

Onc dx mult myeloma stg2 hig

G9133

Onc dx prostate clinical met

G9128

Onc dx multi myeloma stage i

G9134

Onc nhlstg 1-2 no relap no

G9135

Onc dx nhl stg 3-4 not relap

G9126

Onc dx cml remission

Sources

Reference information only. Not billing advice. Verify against the payer before you file.