C24.9Billable

Malignant neoplasm of biliary tract, unspecified

Chapter
2. Neoplasms
Category
C24
Effective date
October 1, 2026

Related codes in category C24

C24Malignant neoplasm of other and unsp parts of biliary tractC24.0Malignant neoplasm of extrahepatic bile ductYesC24.1Malignant neoplasm of ampulla of VaterYesC24.8Malignant neoplasm of overlapping sites of biliary tractYes

Frequently asked questions

What is ICD-10 code C24.9?

C24.9 is an ICD-10-CM diagnosis code for Malignant neoplasm of biliary tract, unspecified.

Is C24.9 a billable code?

Yes. C24.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is C24.9 in?

C24.9 falls under Chapter 2: Neoplasms.

When did C24.9 become effective?

C24.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C24.9?

C24.9 belongs to category C24, which includes 4 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.