The ICD-9 code range OTHER DISEASES OF THE UPPER RESPIRATORY TRACT for 470-478 is medical classification list by the World Health Organization (WHO).
Nasal polyps
Chronic pharyngitis and nasopharyngitis
Chronic sinusitis
Chronic disease of tonsils and adenoids
Chronic tonsillitis and adenoiditis
Hypertrophy of tonsils and adenoids
Chronic laryngitis and laryngotracheitis
Allergic rhinitis
Other diseases of upper respiratory tract
Other diseases of nasal cavity and sinuses
Other diseases of pharynx not elsewhere classified
Paralysis of vocal cords or larynx
Paralysis of vocal cords or larynx, unspecified
Unilateral paralysis of vocal cords or larynx, partial
Unilateral paralysis of vocal cords or larynx, complete
Bilateral paralysis of vocal cords or larynx, partial
Bilateral paralysis of vocal cords or larynx, complete
Other diseases of larynx not elsewhere classified