Coding experts Alicia and Laureen from CCO review the new 2025 ICD-10-CM code changes.
2C22.Y Other specified malignant neoplasms of accessory sinuses
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Specific anatomy - multiple selections are allowed
Histopathology - only one may be selected
Has manifestation - multiple selections are allowed
Has severity - only one may be selected
Has alternative severity2 - only one may be selected
synonyms
- Other specified malignant neoplasms of accessory sinuses
- Other specified malignant neoplasms of accessory sinuses
- Other specified malignant neoplasms of maxillary sinus
- Other specified malignant neoplasms of ethmoidal sinus
- Other specified malignant neoplasms of frontal sinus
- Other specified malignant neoplasms of sphenoidal sinus
- Other specified malignant neoplasms involving overlapping sites of accessory sinuses
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