CA2Z

ICD-11 MMS 2026-01

Lower respiratory tract disease, unspecified

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 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 – Bronchitis
  • CA21 – Emphysema
  • CA22 – Chronic obstructive pulmonary disease
  • CA23 – Asthma
  • CA24 – Bronchiectasis
  • CA25 – Cystic fibrosis
  • CA26 – Chronic bronchiolitis
  • CA27 – Tracheobronchitis
  • CA2Y – Other specified lower respiratory tract disease

Foundation entity

Certain lower respiratory tract diseases – http://id.who.int/icd/entity/1582386590

Allowed postcoordination axes

Part of: 12: Diseases of the respiratory system