CA20 Bronchitis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

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

exclusions

• bronchitis, asthmatic NOS  (CA23.3)
• bronchitis, chemical (acute)  (CA81.Y)

code elsewhere

• Acute bronchitis  (CA42)

sections/codes in this section ()

• Acute noninfectious bronchitis  (CA20.0)
• Chronic bronchitis  (CA20.1)
• Other specified bronchitis  (CA20.Y)
• Bronchitis, unspecified  (CA20.Z)

coding note

Excludes acute infectious bronchitis

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