ICD-9-CM Codes ICD-9-PCS Codes

160.9 - Malignant neoplasm of accessory sinus, unspecified

GEM Conversion to ICD-10 CM

C31.9

Fs: 00000 – Malignant neoplasm of accessory sinus, unspecified

Sibling Codes

160.0

Malignant neoplasm of nasal cavities

160.1

Malignant neoplasm of auditory tube, middle ear, and mastoid air cells

160.2

Malignant neoplasm of maxillary sinus

160.3

Malignant neoplasm of ethmoidal sinus

160.4

Malignant neoplasm of frontal sinus

160.5

Malignant neoplasm of sphenoidal sinus

160.8

Malignant neoplasm of other accessory sinuses

160.9

Malignant neoplasm of accessory sinus, unspecified