C22.1

ICD-10Billable

Intrahepatic bile duct carcinoma

Official ICD-10-CM descriptor (FY2026)

Intrahepatic bile duct carcinoma

C22.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Cholangiocarcinoma

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • malignant neoplasm of hepatic duct (C24.0)

Related codes in C22

Where this code sits

Parent code
C22

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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