2C22.1

ICD-11 MMS 2026-01

Squamous cell carcinoma of 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.

Index terms

  • Squamous cell carcinoma of accessory sinuses

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

Child codes

  • 2C22.10 – Squamous cell carcinoma of sphenoidal sinus
  • 2C22.1Y – Squamous cell carcinoma of other specified accessory sinuses

Sibling codes

  • 2C22.0 – Adenocarcinoma of accessory sinuses
  • 2C22.2 – Malignant epithelial neoplasms of accessory sinuses, unspecified type
  • 2C22.3 – Melanomas of accessory sinuses
  • 2C22.Y – Other specified malignant neoplasms of accessory sinuses
  • 2C22.Z – Malignant neoplasms of accessory sinuses, unspecified

Foundation entity

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

Allowed postcoordination axes

Part of: 2C22: Malignant neoplasms of accessory sinuses › 02: Neoplasms