- 470 Deviated nasal septum
- 471 Nasal polyps
- 472 Chronic pharyngitis and nasopharyngitis
- 473 Chronic sinusitis
- 474 Chronic disease of tonsils and adenoids
- 475 Peritonsillar abscess
- 476 Chronic laryngitis and laryngotracheitis
- 477 Allergic rhinitis
- 478 Other diseases of upper respiratory tract
