2C22.1Y

ICD-11 MMS 2026-01

Squamous cell carcinoma of other specified accessory sinuses

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/1965082709 – Malignant mesenchymal neoplasms
  • 2C51.2 – Mesotheliomas of peritoneum
  • http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
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  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Sibling codes

  • 2C22.10 – Squamous cell carcinoma of sphenoidal sinus

Foundation entity

Squamous cell carcinoma of accessory sinuses – http://id.who.int/icd/entity/587441542

Allowed postcoordination axes

Part of: 2C22.1: Squamous cell carcinoma of accessory sinuses › 2C22: Malignant neoplasms of accessory sinuses › 02: Neoplasms