2B90

ICD-11 MMS 2026-01

Malignant neoplasms of colon

Description

Primary malignant neoplasms arising in the colon.

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

  • 2B81 – Malignant neoplasms of appendix

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

Child codes

  • 2B90.0 – Malignant neoplasm of ascending colon or right flexure of colon
  • 2B90.1 – Malignant neoplasm of descending colon or splenic flexure of colon
  • 2B90.2 – Malignant neoplasm of transverse colon
  • 2B90.3 – Malignant neoplasm of sigmoid colon
  • 2B90.Y – Other specified malignant neoplasms of colon
  • 2B90.Z – Malignant neoplasms of colon, unspecified

Foundation children elsewhere

Sibling codes

  • 2B91 – Malignant neoplasms of rectosigmoid junction
  • 2B92 – Malignant neoplasms of rectum
  • 2B93 – Malignant neoplasms of large intestine, site unspecified
  • 2B9Y – Other specified malignant neoplasms of large intestine

Foundation entity

Malignant neoplasms of colon – http://id.who.int/icd/entity/1265576634

Allowed postcoordination axes

Part of: 02: Neoplasms