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 145 Malignant neoplasm of other and unspecified parts of mouth 145 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 145.0 Malignant neoplasm of cheek mucosa 145.0 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.1 Malignant neoplasm of vestibule of mouth 145.1 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.2 Malignant neoplasm of hard palate 145.2 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.3 Malignant neoplasm of soft palate 145.3 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.4 Malignant neoplasm of uvula 145.4 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.5 Malignant neoplasm of palate unspecified 145.5 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.6 Malignant neoplasm of retromolar area 145.6 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.8 Malignant neoplasm of other specified parts of mouth 145.8 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 145.9 Malignant neoplasm of mouth unspecified A malignant tumor involving the oral cavity. The majority are squamous cell carcinomas. -- 2003 145.9 is a specific code that can be used to specify a diagnosis