Anaphylaxis

Definition

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.

9 subordinate codes

• 4A84.0Anaphylaxis due to allergic reaction to food
• 4A84.1Drug-induced anaphylaxis
• 4A84.2Anaphylaxis due to insect venom
• 4A84.3Anaphylaxis provoked by physical factors
• 4A84.4Anaphylaxis due to inhaled allergens
• 4A84.5Anaphylaxis due to contact with allergens
• 4A84.6Anaphylaxis secondary to mast cell disorder
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Allergic or hypersensitivity conditions

• 4A80Allergic or hypersensitivity disorders involving the respiratory tract
• 4A81Allergic or hypersensitivity disorders involving the eye
• 4A82Allergic or hypersensitivity disorders involving skin or mucous membranes
• 4A83Allergic or hypersensitivity disorders involving the gastrointestinal tract
• 4A85Complex allergic or hypersensitivity conditions
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified