2B71

ICD-11 MMS 2026-01

Malignant neoplasms of oesophagogastric junction

Description

Malignant neoplasms that arise from the cells of the oesophagogastric junction (OGJ), which is defined as the point at which the oesophagus ends and the stomach begins. This mainly defines adenocarcinomas that straddle the junction of the oesophagus and stomach. This definition includes many tumours formally called cancers of the gastric cardia.

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.

Excludes

  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms

Exclusions from above levels

  • http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
  • 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
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  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Child codes

  • 2B71.0 – Adenocarcinoma of oesophagogastric junction
  • 2B71.Y – Other specified malignant neoplasm of oesophagogastric junction
  • 2B71.Z – Malignant neoplasms of oesophagogastric junction, unspecified

Sibling codes

  • 2B70 – Malignant neoplasms of oesophagus
  • 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
  • 2C13 – Malignant neoplasms of gallbladder
  • 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 oesophagogastric junction – http://id.who.int/icd/entity/1103107484

Allowed postcoordination axes

Part of: 02: Neoplasms