World Health Organization · 2026-01 · English
2C22 Malignant neoplasms of accessory sinuses
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
2C22.0Adenocarcinoma of accessory sinuses2C22.1Squamous cell carcinoma of accessory sinuses2C22.2Malignant epithelial neoplasms of accessory sinuses, unspecified type2C22.3Melanomas of accessory sinuses2C22.YOther specified malignant neoplasms of accessory sinuses2C22.ZMalignant neoplasms of accessory sinuses, unspecified© World Health Organization · CC BY-ND 3.0 IGO