CA70.4

ICD-11 MMS 2026-01

Malt worker lung

Description

A disease of the pulmonary system, caused by the fungi Aspergillus clavatus or Aspergillus fumigatus. This disease commonly presents with fever, chills, fatigue, weight loss, cough, headache, myalgia, or shortness of breath. Transmission is by inhalation of fungal spores. Confirmation is by identification of Aspergillus in a sputum, blood, or skin sample.

Coding note from above levels

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

Index terms

  • Malt worker lung
  • Alveolitis due to Aspergillus clavatus
  • Extrinsic allergic alveolitis due to Aspergillus spp
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  • alveolitis due to Aspergillus fumigatus
  • malt fever
  • malt house workers' cough
  • malt workers' lung
  • malt-workers' alveolitis
  • malt-workers' lung disease

Inclusions

  • Alveolitis due to Aspergillus clavatus

Exclusions from above levels

  • CA80 – Airway disease due to specific organic dust
  • CA81.0 – pneumonitis due to inhalation of chemicals, gases, fumes or vapours
  • CA40 – Pneumonia
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  • CA23 – Asthma
  • 01 – Certain infectious or parasitic diseases
  • 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

  • CA70.0 – Farmer lung
  • CA70.1 – Bagassosis
  • CA70.2 – Bird fancier lung
  • CA70.3 – Suberosis
  • 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

Foundation entity

Malt worker lung – http://id.who.int/icd/entity/553164358

Allowed postcoordination axes

Part of: CA70: Hypersensitivity pneumonitis due to organic dust › 12: Diseases of the respiratory system