Anaphylaxis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Anaphylaxis is a severe, life-threatening systemic hypersensitivity reaction characterised by being rapid in onset with potentially life-threatening airway, breathing, or circulatory problems and is usually, although not always, associated with skin and mucosal changes.

sections/codes in this section (4A84-4A84)

• Anaphylaxis due to allergic reaction to food  (4A84.0)
• Drug-induced anaphylaxis  (4A84.1)
• Anaphylaxis due to insect venom  (4A84.2)
• Anaphylaxis provoked by physical factors  (4A84.3)
• Anaphylaxis due to inhaled allergens  (4A84.4)
• Anaphylaxis due to contact with allergens  (4A84.5)
• Anaphylaxis secondary to mast cell disorder  (4A84.6)
• Other specified anaphylaxis  (4A84.Y)
• Anaphylaxis, unspecified  (4A84.Z)

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