. Author manuscript; available in PMC: 2020 Mar 2.

Published in final edited form as: Laryngoscope. 2017 Apr 20;127(10):2287–2292. doi: 10.1002/lary.26626

TABLE II.

ICD-9 Diagnosis Codes for Malignant Neoplasms of the Upper Aerodigestive Tract.

Code	Description
141.0, 146.3	Malignant neoplasm of the base of tongue
141.1–9	Malignant neoplasm of the oral tongue
142.2, 144.0–1, 144.8–9	Malignant neoplasm of the floor of mouth
143.0–1, 143.8–9	Malignant neoplasm of the alveolus
145.0	Malignant neoplasm of the buccal mucosa
145.1	Malignant neoplasm of the oral vestibule
145.2	Malignant neoplasm of the hard palate
145.3–4	Malignant neoplasm of the soft palate
145.6	Malignant neoplasm of the retromolar trigone
146.0–2	Malignant neoplasm of the tonsil
146.4, 161.0–9	Malignant neoplasm of the larynx
146.5–7	Malignant neoplasm of the pharyngeal wall
148.0–9	Malignant neoplasm of the hypopharynx
149.0	Malignant neoplasm of the pharynx, unspecified

ICD-9 = International Classification of Diseases, Ninth Edition.