2B90.00

ICD-11 MMS 2026-01

Adenocarcinoma of ascending colon or right flexure of colon

Description

A malignant tumour with glandular differentiation arising from epithelium of ascending colon and right flexure.

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 ascending colon or right flexure of colon
  • Adenocarcinomas of caecum
  • Adenocarcinomas of hepatic flexure

Exclusions from above levels

  • 2B81 – Malignant neoplasms of appendix
  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
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  • 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
  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Sibling codes

  • 2B90.0Y – Other specified malignant neoplasm of ascending colon or right flexure of colon
  • 2B90.0Z – Malignant neoplasm of ascending colon or right flexure of colon, unspecified

Foundation entity

Adenocarcinoma of ascending colon or right flexure of colon – http://id.who.int/icd/entity/871442980

Allowed postcoordination axes

Part of: 2B90.0: Malignant neoplasm of ascending colon or right flexure of colon › 2B90: Malignant neoplasms of colon › 02: Neoplasms