G9104
HCPCSOnc dx gastric unknown nos
Official HCPCS Level II long descriptor
Oncology; disease status; gastric cancer, limited to adenocarcinoma as predominant cell type; extent of disease unknown, staging in progress, or not listed (for use in a medicare-approved demonstration project)
HCPCS Level II code G9104 is maintained by CMS and is active in the current quarterly release.
Short descriptor
Onc dx gastric unknown nos
Added to HCPCS: 2006-01-01
Nearby codes in G9
- G9096Onc dx esophag t1-t3 noprog
- G9097Onc dx esophageal t4 no prog
- G9098Onc dx esophageal mets recur
- G9099Onc dx esophageal unknown
- G9100Onc dx gastric no recurrence
- G9101Onc dx gastric p r1-r2noprog
- G9102Onc dx gastric unresectable
- G9103Onc dx gastric recurrent
- G9105Onc dx pancreatc p r0 res no
- G9106Onc dx pancreatc p r1/r2 no
- G9107Onc dx pancreatic unresectab
- G9108Onc dx pancreatic unknwn nos
- G9109Onc dx head/neck t1-t2no prg
- G9110Onc dx head/neck t3-4 noprog
- G9111Onc dx head/neck m1 mets rec
- G9112Onc dx head/neck ext unknown
Where this code sits
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HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.