Is C17 a billable ICD-10-CM code?

No. C17 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C17 sit in the tabular list?

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

What cannot be coded together with C17?

C17 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.

C17

C17 — Malignant neoplasm of small intestine

Non-billable headerICD-10-CM

C17 is a non-billable header ICD-10-CM code for malignant neoplasm of small intestine. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

malignant carcinoid tumors of the small intestine (C7A.01)

Risk adjustment

C17 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

C17 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead C17

6 child codes. Green means billable.

Questions about C17

Is C17 a billable ICD-10-CM code?: No. C17 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C17 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).
What cannot be coded together with C17?: C17 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.