2C21.Y

ICD-11 MMS 2026-01

Other specified malignant neoplasm of middle ear

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.

Exclusions from above levels

  • http://id.who.int/icd/entity/1706880799 – malignant neoplasm of skin of (external) ear
  • http://id.who.int/icd/entity/1965082709 – malignant neoplasm of cartilage of ear
  • 2C51.2 – Mesotheliomas of peritoneum
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  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • 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

  • 2C21.0 – Adenocarcinoma of middle ear
  • 2C21.1 – Squamous cell carcinoma of middle ear
  • 2C21.2 – Unspecified malignant epithelial neoplasm of middle ear
  • 2C21.Z – Malignant neoplasms of middle ear, unspecified

Foundation entity

Malignant neoplasms of middle ear – http://id.who.int/icd/entity/621800828

Allowed postcoordination axes

Part of: 2C21: Malignant neoplasms of middle ear › 02: Neoplasms