2C12.1

ICD-11 MMS 2026-01

Malignant neoplasm of intrahepatic bile ducts

Coding note from above levels

For use of this category, reference should be made to the mortality coding rules and guidelines in the Reference Guide.

Exclusions from above levels

  • 2C17 – Malignant neoplasm of biliary tract NOS
  • 2D80 – Secondary malignant neoplasm of liver
  • http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
Show allHide
  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • http://id.who.int/icd/entity/794095161 – Malignant neoplasms of lip, oral cavity or pharynx
  • http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Child codes

  • 2C12.10 – Intrahepatic cholangiocarcinoma
  • 2C12.1Y – Other specified malignant neoplasms of intrahepatic bile ducts
  • 2C12.1Z – Malignant neoplasm of intrahepatic bile ducts, unspecified

Sibling codes

  • 2C12.0 – Malignant neoplasm of liver

Foundation entity

Malignant neoplasm of intrahepatic bile ducts – http://id.who.int/icd/entity/1938186540

Allowed postcoordination axes

Part of: 2C12: Malignant neoplasms of liver or intrahepatic bile ducts › 02: Neoplasms