Urticaria, angioedema or other urticarial disorders

Definition

A heterogeneous group of disorders characterised by dermal and/or subcutaneous and submucosal oedema. The most common underlying mechanism is release of histamine from mast cells with consequent capillary dilatation and tissue oedema. This is responsible for the weals of spontaneous and most physical urticarias. A variety of other mechanisms are involved in other urticarial disorders.

Exclusions

• Papular urticaria (EK50.00)
• Urticaria pigmentosa (2A21.10)

7 subordinate codes

• EB00Spontaneous urticaria
• EB01Inducible urticaria or angioedema
• EB02Cholinergic urticaria or related conditions
• EB03Syndromes with urticarial reactions or angioedema
• EB04Idiopathic angioedema
• EB05Urticaria of unspecified type
• 4B4YOther specified diseases of the immune system

Nearby in Inflammatory dermatoses

• EA80-EA8ZDermatitis or eczema
• EA90-EA95Papulosquamous dermatoses
• EB10-EB31Inflammatory erythemas and other reactive inflammatory dermatoses
• EB40-EB4YImmunobullous diseases of the skin
• EB50-EB5ZCutaneous lupus erythematosus
• EB60-EB61.ZScarring or sclerosing inflammatory dermatoses
• Nonorgan specific systemic autoimmune disorders involving the skin
• 4B4YOther specified diseases of the immune system