Bronchitis

Definition

Bronchitis is inflammation of the main air passages to the lungs.

Coding note

Excludes acute infectious bronchitis

Exclusions

• bronchitis, asthmatic NOS (CA23.3)
• bronchitis, chemical (acute) (4B4Y)

4 subordinate codes

• CA20.0Acute noninfectious bronchitis
• CA20.1Chronic bronchitis
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Certain lower respiratory tract diseases

• CA21Emphysema
• CA22Chronic obstructive pulmonary disease
• CA23Asthma
• CA24Bronchiectasis
• CA25Cystic fibrosis
• CA26Chronic bronchiolitis
• CA27Tracheobronchitis
• 4B4YOther specified diseases of the immune system