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

146.1 - Malignant neoplasm of tonsillar fossa

GEM Conversion to ICD-10 CM

C09.0

Fs: 00000 – Malignant neoplasm of tonsillar fossa

Sibling Codes

146.0

Malignant neoplasm of tonsil

146.1

Malignant neoplasm of tonsillar fossa

146.2

Malignant neoplasm of tonsillar pillars (anterior) (posterior)

146.3

Malignant neoplasm of vallecula epiglottica

146.4

Malignant neoplasm of anterior aspect of epiglottis

146.5

Malignant neoplasm of junctional region of oropharynx

146.6

Malignant neoplasm of lateral wall of oropharynx

146.7

Malignant neoplasm of posterior wall of oropharynx

146.8

Malignant neoplasm of other specified sites of oropharynx

146.9

Malignant neoplasm of oropharynx, unspecified site