Drug or pharmacological agents hypersensitivity

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

Drug hypersensitivity reactions are the adverse effects of pharmaceutical formulations (including active drugs and excipients) that clinically resemble allergy. It belongs to type B adverse drug reactions, which are defined by the World Health Organization as the dose-independent, unpredictable, noxious, and unintended response to a drug taken at a dose normally used in humans. It covers many different clinical phenotypes with variable onset and severity.

code elsewhere

• Drug eruptions  (EH60-EH6Z)
• Drug-induced bronchospasm  (4A80.0)
• Drug-induced aplastic anaemia  (3A70.10)
• Aspirin-induced asthma  (CA23.20)
• Samter syndrome  (CA0A.0)
• Photoallergic drug reaction  (EH75)
• Pseudolymphomatous drug hypersensitivity syndrome  (EH6Y)
• Anaphylaxis due to radiocontrast media  (EL80)

sections/codes in this section (4A85.0-4A85.0)

• Drug-induced liver hypersensitivity disease  (4A85.00)
• Drug-induced kidney hypersensitivity  (4A85.01)
• Drug-induced cytopenia  (4A85.02)
• Drug-induced vasculitis  (4A85.03)
• Multiple drug hypersensitivity syndrome  (4A85.04)
• Drug hypersensitivity of other specified type  (4A85.0Y)
• Drug hypersensitivity of unspecified type  (4A85.0Z)

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