2B91.0

ICD-11 MMS 2026-01

Adenocarcinoma of rectosigmoid junction

Description

A malignant tumour with glandular differentiation arising from epithelium of rectosigmoid junction

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

  • Adenocarcinoma of rectosigmoid junction

Exclusions from above levels

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

  • 2B91.Y – Other specified malignant neoplasms of rectosigmoid junction
  • 2B91.Z – Malignant neoplasms of rectosigmoid junction, unspecified

Foundation entity

Adenocarcinoma of rectosigmoid junction – http://id.who.int/icd/entity/1134901606

Allowed postcoordination axes

Part of: 2B91: Malignant neoplasms of rectosigmoid junction › 02: Neoplasms