Is C16.6 a billable ICD-10-CM code?

Yes. C16.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C16.6 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).

C16.6

C16.6 — Malignant neoplasm of greater curvature of stomach, unspecified

Billable / specific codeICD-10-CM

C16.6 is a billable, specific ICD-10-CM code for malignant neoplasm of greater curvature of stomach, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Malignant neoplasm of greater curvature of stomach, not classifiable to C16.0-C16.4

Excludes2 inherited from the categories above C16.6

Also inherited, and the opposite of Excludes1: these conditions are not part of C16.6, but a patient can have both, so you may code both.

Written on C16 — Malignant neoplasm of stomach

malignant carcinoid tumor of the stomach (C7A.092)

Risk adjustment

C16.6 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 20 Lung and Other Severe Cancers1.136 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

C16.6 is named in 66 Medicare coverage policies — 66 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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Code history

C16.6 has not changed since FY2024 — no addition, revision or deletion across the FY2024–FY2027 ICD-10-CM releases.

Related codes at this level

Codes that share C16. If C16.6 is not quite right, the correct code is usually one of these.

Questions about C16.6

Is C16.6 a billable ICD-10-CM code?: Yes. C16.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C16.6 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).