2C13

ICD-11 MMS 2026-01

Malignant neoplasms of gallbladder

Description

A malignant tumour arising from the epithelium of the gallbladder. It is usually associated with the presence of gallstones. Clinical symptoms are not specific and usually present late in the course. Morphologically, adenocarcinoma is the most common type, however squamous cell carcinomas, adenosquamous carcinomas, signet ring carcinomas, and undifferentiated carcinomas can also occur.

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

Child codes

  • 2C13.0 – Adenocarcinoma of the gallbladder
  • 2C13.Y – Other specified malignant neoplasm of gallbladder
  • 2C13.Z – Malignant neoplasms of gallbladder, unspecified

Sibling codes

  • 2B70 – Malignant neoplasms of oesophagus
  • 2B71 – Malignant neoplasms of oesophagogastric junction
  • 2B72 – Malignant neoplasms of stomach
  • 2C10 – Malignant neoplasm of pancreas
  • 2C11 – Malignant neoplasms of other or ill-defined digestive organs
  • 2C12 – Malignant neoplasms of liver or intrahepatic bile ducts
  • 2C14 – Malignant neoplasms of proximal biliary tract, cystic duct
  • 2C15 – Malignant neoplasms of biliary tract, distal bile duct
  • 2C16 – Malignant neoplasms of ampulla of Vater
  • 2C17 – Malignant neoplasms of other or unspecified parts of biliary tract
  • 2C18 – Malignant neoplasms of perihilar bile duct
  • 2C1Z – Malignant neoplasms of digestive organs, unspecified

Foundation entity

Malignant neoplasms of gallbladder – http://id.who.int/icd/entity/922082116

Allowed postcoordination axes

Part of: 02: Neoplasms