ICD-10-CM
ICD-10 code for Stomach cancer: C16.9
The CDC title for "Stomach cancer" is C16 (Malignant neoplasm of stomach), a header that is not billable. When nothing more specific is documented, the billable code is C16.9, Malignant neoplasm of stomach, unspecified.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under C16, then other CDC titles that name malignant neoplasm of stomach
A header groups codes and is not billed. A billable code is one you can report.
- C16Malignant neoplasm of stomachHeader
- C16.0Malignant neoplasm of cardiaBillable
- C16.1Malignant neoplasm of fundus of stomachBillable
- C16.2Malignant neoplasm of body of stomachBillable
- C16.3Malignant neoplasm of pyloric antrumBillable
- C16.4Malignant neoplasm of pylorusBillable
- C16.5Malignant neoplasm of lesser curvature of stomach, unspecifiedBillable
- C16.6Malignant neoplasm of greater curvature of stomach, unspecifiedBillable
- C16.8Malignant neoplasm of overlapping sites of stomachBillable
- C16.9Malignant neoplasm of stomach, unspecifiedBillable
- Z12.0Encounter for screening for malignant neoplasm of stomachBillable
- Z85.02Personal history of malignant neoplasm of stomachHeader
- Z85.028Personal history of other malignant neoplasm of stomachBillable
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From C16. A note on a category applies to every code under it.
Use additional code to identify:
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From C16. A note on a category applies to every code under it.
Related conditions
Related pages
- C16.9 code detailsNotes, nearby codes, CMS-HCC group
- Category C16Every code under it
- Chapter 2Neoplasms
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Stomach cancer?
The CDC title for "Stomach cancer" is C16 (Malignant neoplasm of stomach), a header that is not billable. When nothing more specific is documented, the billable code is C16.9, Malignant neoplasm of stomach, unspecified.
Is C16.9 billable?
Yes. C16.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to C16.9?
The CDC tabular list gives 1 Excludes2 note (may be coded together when both are documented), 2 "use additional code" notes for C16.9 and the categories above it. They are listed on this page.
What chapter is C16.9 in?
Chapter 2. Neoplasms.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.