4A84.1ICD-11 MMS 2026-01
Drug-induced anaphylaxis
Description
Anaphylaxis attributable to a drug. When severe it may be fatal. This systemic reaction usually develops within minutes to hours of administration of the drug, is often severe and may be fatal. The most frequent drugs causing anaphylaxis are antibiotics, particularly penicillins. Clinically there may be premonitory dizziness or faintness, skin tingling and erythema, followed by urticaria, angio-oedema, bronchospasm, abdominal pain and vasomotor collapse.
Index terms
- Drug-induced anaphylaxis
- Anaphylaxis due to drugs and medicaments
- medicament-induced anaphylaxis
Exclusions from above levels
Sibling codes
4A84.0– Anaphylaxis due to allergic reaction to food4A84.2– Anaphylaxis due to insect venom4A84.3– Anaphylaxis provoked by physical factors4A84.4– Anaphylaxis due to inhaled allergens4A84.5– Anaphylaxis due to contact with allergens4A84.6– Anaphylaxis secondary to mast cell disorder4A84.Y– Other specified anaphylaxis4A84.Z– Anaphylaxis, unspecified
Foundation entity
Drug-induced anaphylaxis – http://id.who.int/icd/entity/1200133657
Allowed postcoordination axes
Part of: 4A84: Anaphylaxis › 04: Diseases of the immune system