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 tonsil
 * Cicatrix of tonsil (and adenoid)
 * Tonsillar tag
 * Ulcer of tonsil
 * J35.9 Chronic disease of tonsils and adenoids, unspecified
 * Disease (chronic) of tonsils and adenoids NOS

J36 Peritonsillar abscess

 * Includes: abscess of tonsil
 * peritonsillar cellulitis
 * quinsy
 * Use additional code (B95-B97) to identify infectious agent.
 * Excludes1: acute tonsillitis (J03.-)
 * chronic tonsillitis (J35.0)
 * retropharyngeal abscess (J39.0)
 * tonsillitis NOS (J03.9-)

J37 Chronic laryngitis and laryngotracheitis

 * Use additional code to identify:
 * exposure to environmental tobacco smoke (Z77.22)
 * exposure to tobacco smoke in the perinatal period (P96.81)
 * history of tobacco use (Z87.891)
 * infectious agent (B95-B97)
 * occupational exposure to environmental tobacco smoke (Z57.31)
 * tobacco dependence (F17.-)
 * tobacco use (Z72.0)
 * J37.0 Chronic laryngitis
 * Catarrhal laryngitis
 * Hypertrophic laryngitis
 * Sicca laryngitis
 * Excludes2: acute laryngitis (J04.0)
 * obstructive (acute) laryngitis (J05.0)
 * J37.1 Chronic laryngotracheitis
 * Laryngitis, chronic, with tracheitis (chronic)
 * Tracheitis, chronic, with laryngitis
 * Excludes1: chronic tracheitis (J42)
 * Excludes2: acute laryngotracheitis (J04.2)
 * acute tracheitis (J04.1)

J38 Diseases of vocal cords and larynx, not elsewhere classified

 * Use additional code to identify:
 * exposure to environmental tobacco smoke (Z77.22)
 * exposure to tobacco smoke in the perinatal period (P96.81)
 * history of tobacco use (Z87.891)
 * occupational exposure to environmental tobacco smoke (Z57.31)
 * tobacco dependence (F17.-)
 * tobacco