2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Lip, Oral Cavity, And Pharynx 140-149 > ICD-9-CM Diagnosis 146 Malignant neoplasm of oropharynx Malignant neoplasms of the oral cavity and pharynx 146 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 146.0 Malignant neoplasm of tonsil Malignant neoplasm of the tonsils 146.0 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.1 Malignant neoplasm of tonsillar fossa 146.1 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.2 Malignant neoplasm of tonsillar pillars (anterior) (posterior) 146.2 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.3 Malignant neoplasm of vallecula epiglottica 146.3 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.4 Malignant neoplasm of anterior aspect of epiglottis 146.4 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.5 Malignant neoplasm of junctional region of oropharynx 146.5 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.6 Malignant neoplasm of lateral wall of oropharynx 146.6 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.7 Malignant neoplasm of posterior wall of oropharynx 146.7 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 146.8 Malignant neoplasm of other specified sites of oropharynx 146.8 is a specific code that can be used to specify a diagnosis 146.8 contains 1 index entry ICD-9-CM Diagnosis 146.9 Malignant neoplasm of oropharynx unspecified site Malignant neoplasms of the oral cavity and pharynx 146.9 is a specific code that can be used to specify a diagnosis