2C18.1

ICD-11 MMS 2026-01

Mucinous cystic neoplasm with associated invasive carcinoma 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.

Index terms

  • Mucinous cystic neoplasm with associated invasive carcinoma of perihilar bile duct

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
  • 2C18.2 – Neuroendocrine neoplasm of perihilar bile duct
  • 2C18.Y – Other specified malignant neoplasms of perihilar bile duct
  • 2C18.Z – Malignant neoplasms of perihilar bile duct, unspecified

Foundation entity

Mucinous cystic neoplasm with associated invasive carcinoma of perihilar bile duct – http://id.who.int/icd/entity/829265348

Allowed postcoordination axes

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