2E61.2

ICD-11 MMS 2026-01

Carcinoma in situ of anal canal

Description

Malignant epithelial tumour that has not invaded beyond the epithelium of the anal canal.

Index terms

  • Carcinoma in situ of anal canal
  • AIN - [anal intraepithelial neoplasia] high grade
  • intraepithelial neoplasia (dysplasia) of anal canal, high grade

Excludes

  • 2E64 – Carcinoma in situ of anal skin
  • 2E64.2 – Carcinoma in situ of perianal skin

Exclusions from above levels

  • 2E63 – Melanoma in situ neoplasms

Sibling codes

  • 2E61.0 – Carcinoma in situ of colon
  • 2E61.1 – Carcinoma in situ of rectum
  • 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 anal canal – http://id.who.int/icd/entity/1447034

Allowed postcoordination axes

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