CA70

ICD-11 MMS 2026-01

Hypersensitivity pneumonitis due to organic dust

Description

Hypersensitivity pneumonitis due to organic dust is an inflammation of the alveoli, terminal bronchioli and the interstitium within caused by hypersensitivity to inhaled organic dusts, such as allergens derived from fungal, bacterial, animal protein.

Coding note

Includes: allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other origin

Excludes

  • CA80 – Airway disease due to specific organic dust
  • CA81.0 – pneumonitis due to inhalation of chemicals, gases, fumes or vapours

Exclusions from above levels

  • CA40 – Pneumonia
  • CA23 – Asthma
  • 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

Child codes

  • CA70.0 – Farmer lung
  • CA70.1 – Bagassosis
  • CA70.2 – Bird fancier lung
  • CA70.3 – Suberosis
  • CA70.4 – Malt worker lung
  • CA70.5 – Mushroom worker lung
  • CA70.6 – Maple bark stripper lung
  • CA70.7 – Air conditioner or humidifier lung
  • CA70.Y – Other specified hypersensitivity pneumonitis due to organic dust
  • CA70.Z – Hypersensitivity pneumonitis due to organic dust, unspecified

Sibling codes

  • CA71 – Pneumonitis due to solids or liquids
  • CA72 – Mendelson syndrome
  • CA7Y – Other specified pneumonitis
  • CA7Z – Pneumonitis, unspecified

Foundation entity

Hypersensitivity pneumonitis due to organic dust – http://id.who.int/icd/entity/589867913

Part of: 12: Diseases of the respiratory system