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Upper respiratory tract disorders

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

This group of disorders refers to diseases of the upper airways (upper respiratory tract). The upper airways anatomically are complicated structures which extend from the airway openings at the nares and lips to the trachea. The term upper airways includes several anatomically distinct regions. The nose constitutes the upper segment, followed by the nasopharyngeal and oropharyngeal airways, which extend from the nasal choanae and oral cavity to the supraglottic space. The paranasal sinuses drain into the nasal cavities and are attached to the lateral, posterior, and superior aspects of the nose. The larynx divides the upper and lower airways, although some place it in the thoracic inlet.

exclusions

• Chronic obstructive pulmonary disease with acute exacerbation, unspecified  (CA22.0)

sections/codes in this section (CA00-CA0Z)

• Acute nasopharyngitis  (CA00)
• Acute sinusitis  (CA01)
• Acute pharyngitis  (CA02)
• Acute tonsillitis  (CA03)
• Acute laryngopharyngitis  (CA04)
• Acute laryngitis or tracheitis  (CA05)
• Acute obstructive laryngitis or epiglottitis  (CA06)
• Acute upper respiratory infections of multiple and unspecified sites  (CA07)
• Vasomotor or allergic rhinitis  (CA08)
• Chronic rhinitis, nasopharyngitis or pharyngitis  (CA09)
• Chronic rhinosinusitis  (CA0A)
• Silent sinus syndrome  (CA0B)
• Cyst or mucocele of nose or nasal sinus  (CA0C)
• Deviated nasal septum  (CA0D)
• Hypertrophy of nasal turbinates  (CA0E)
• Chronic diseases of tonsils or adenoids  (CA0F)
• Chronic laryngitis or laryngotracheitis  (CA0G)
• Diseases of vocal cords or larynx, not elsewhere classified  (CA0H)
• Nasal polyp  (CA0J)
• Abscess of upper respiratory tract  (CA0K)
• Other specified upper respiratory tract disorders  (CA0Y)
• Upper respiratory tract disorders, unspecified  (CA0Z)

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