CA20.Z

ICD-11 MMS 2026-01

Bronchitis, unspecified

Coding note

Excludes acute infectious bronchitis

Exclusions from above levels

  • CA23.3 – bronchitis, asthmatic NOS
  • CA81.Y – bronchitis, chemical (acute)
  • 01 – Certain infectious or parasitic diseases
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  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • CA20.0 – Acute noninfectious bronchitis
  • CA20.1 – Chronic bronchitis
  • CA20.Y – Other specified bronchitis

Foundation entity

Bronchitis – http://id.who.int/icd/entity/11753425

Part of: CA20: Bronchitis › 12: Diseases of the respiratory system