2E61.1

ICD-11 MMS 2026-01

Carcinoma in situ of rectum

Description

Malignant epithelial tumour of rectum that has not invaded adjacent tissue of the large intestine.

Index terms

  • Carcinoma in situ of rectum
  • Intraepithelial neoplasia (dysplasia) of rectum, high grade
  • rectal carcinoma in situ
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  • severe dysplasia of rectum

Exclusions from above levels

  • 2E63 – Melanoma in situ neoplasms

Sibling codes

  • 2E61.0 – Carcinoma in situ of colon
  • 2E61.2 – Carcinoma in situ of anal canal
  • 2E61.3 – Carcinoma in situ of gallbladder, biliary tract or ampulla of Vater
  • 2E61.Y – Carcinoma in situ of other specified digestive organs
  • 2E61.Z – Carcinoma in situ of unspecified digestive organs

Foundation entity

Carcinoma in situ of rectum – http://id.who.int/icd/entity/1700649456

Allowed postcoordination axes

Part of: 2E61: Carcinoma in situ of other or unspecified digestive organs › 02: Neoplasms