Is C18.0 a billable ICD-10-CM code?

Yes. C18.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C18.0 sit in the tabular list?

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

C18.0

C18.0 — Malignant neoplasm of cecum

Billable / specific codeICD-10-CM

C18.0 is a billable, specific ICD-10-CM code for malignant neoplasm of cecum. 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 ileocecal valve

Other codes that can never be billed with C18.0

These codes carry an Excludes1 note pointing at C18.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C18.0 alone.

C17.2Malignant neoplasm of ileum

Risk adjustment

C18.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 22 Bladder, Colorectal, and Other Cancers0.363 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.

Medicare coverage

C18.0 is named in 104 Medicare coverage policies — 104 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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Related codes at this level

Codes that share C18. If C18.0 is not quite right, the correct code is usually one of these.

Questions about C18.0

Is C18.0 a billable ICD-10-CM code?: Yes. C18.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C18.0 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).