C26.9Billable

Malignant neoplasm of ill-defined sites within the digestive system

Short description: Malignant neoplasm of ill-defined sites within the dgstv sys

Chapter
2. Neoplasms
Category
C26
Effective date
October 1, 2026

Related codes in category C26

C26Malignant neoplasm of other and ill-defined digestive organsC26.0Malignant neoplasm of intestinal tract, part unspecifiedYesC26.1Malignant neoplasm of spleenYes

Frequently asked questions

What is ICD-10 code C26.9?

C26.9 is an ICD-10-CM diagnosis code for Malignant neoplasm of ill-defined sites within the digestive system.

Is C26.9 a billable code?

Yes. C26.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is C26.9 in?

C26.9 falls under Chapter 2: Neoplasms.

When did C26.9 become effective?

C26.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C26.9?

C26.9 belongs to category C26, which includes 3 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.