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Certain lower respiratory tract diseases

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

This group refers to diseases of airways that forms the connection between the outside world and the terminal respiratory unit. Intrapulmonary airways are divided into three major groups; bronchi, membranous bronchiole, and respiratory bronchiole/gas exchange ducts.

code elsewhere

• Acute tracheitis  (CA05.1)
• Whooping cough  (1C12)
• Chronic respiratory disease originating in the perinatal period  (KB29)

sections/codes in this section (CA20-CA2Z)

• Bronchitis  (CA20)
• Emphysema  (CA21)
• Chronic obstructive pulmonary disease  (CA22)
• Asthma  (CA23)
• Bronchiectasis  (CA24)
• Cystic fibrosis  (CA25)
• Chronic bronchiolitis  (CA26)
• Tracheobronchitis  (CA27)
• Other specified lower respiratory tract disease  (CA2Y)
• Lower respiratory tract disease, unspecified  (CA2Z)

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