ICD-10 C16
Non-Billable HeaderMalignant neoplasm of stomach
About ICD-10-CM C16
ICD-10-CM code C16 represents Malignant neoplasm of stomach. This is a non-billable header code in the Neoplasms chapter (block C16). The 2026 edition of ICD-10-CM C16 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 2 Excludes
Not included here, the excluded code is not part of C16, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- malignant carcinoid tumor of the stomach (C7A.092)
Use Additional Code
When coding C16, also report these additional codes when applicable.
- code to identify:
- alcohol abuse and dependence (F10.-)
Medicare LCD Coverage for C16
Local Coverage Determinations (LCDs) from CMS MACs that list C16 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing C16.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but C16 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with C16
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To C16
Other codes in section C15-C26 (Malignant neoplasms of digestive organs).
ICD-10 C16, Billing FAQ
Is ICD-10 code C16 billable? +
No, C16 is a non-billable header code. Use a more specific child code from block C16 when submitting claims.
What codes are Type 2 Excludes for C16? +
Type 2 Excludes (may be coded together when both conditions exist): malignant carcinoid tumor of the stomach (C7A.092)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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