C17.9Billable

Malignant neoplasm of small intestine, unspecified

Chapter
2. Neoplasms
Category
C17
Effective date
October 1, 2026

Related codes in category C17

C17Malignant neoplasm of small intestineC17.0Malignant neoplasm of duodenumYesC17.1Malignant neoplasm of jejunumYesC17.2Malignant neoplasm of ileumYesC17.3Meckel's diverticulum, malignantYesC17.8Malignant neoplasm of overlapping sites of small intestineYes

Frequently asked questions

What is ICD-10 code C17.9?

C17.9 is an ICD-10-CM diagnosis code for Malignant neoplasm of small intestine, unspecified.

Is C17.9 a billable code?

Yes. C17.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is C17.9 in?

C17.9 falls under Chapter 2: Neoplasms.

When did C17.9 become effective?

C17.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C17.9?

C17.9 belongs to category C17, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.