ICD 9 CM Codes

148.0Malignant neoplasm of postcricoid region of hypopharynx
148.1Malignant neoplasm of pyriform sinus
148.2Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
148.3Malignant neoplasm of posterior hypopharyngeal wall
148.8Malignant neoplasm of other specified sites of hypopharynx
148.9Malignant neoplasm of hypopharynx, unspecified site