• 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