2C18.Y

ICD-11 MMS 2026-01

Other specified malignant neoplasms of perihilar bile duct

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

http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
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

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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

Sibling codes

2C18.0 – Hilar cholangiocarcinoma
2C18.1 – Mucinous cystic neoplasm with associated invasive carcinoma of perihilar bile duct
2C18.2 – Neuroendocrine neoplasm of perihilar bile duct
2C18.Z – Malignant neoplasms of perihilar bile duct, unspecified

Foundation entity

Malignant neoplasms of perihilar bile duct – http://id.who.int/icd/entity/1071237724

Allowed postcoordination axes

Part of: 2C18: Malignant neoplasms of perihilar bile duct › 02: Neoplasms