ICD-11 classes
14 Diseases of the skin
Skin disorders involving specific cutaneous structures
Disorders of the epidermis and epidermal appendages
Disorders of the hair follicle
ED92 — Disorders involving the apocrine follicular unit
ED92.0 — Hidradenitis suppurativa

ICD-11 ED92.0 — Hidradenitis suppurativa

Hidradenitis suppurativa is a chronic disease characterised by recurrent, painful, deep-seated, rounded nodules and abscesses due to follicular occlusion with secondary inflammation and destruction of the pilo-sebaceo-apocrine apparatus and extension to the adjacent subcutaneous tissue. Subsequent hypertrophic scarring and suppuration of apocrine gland-bearing skin (axillae, groins, peri-anal and perineal regions) are the main clinical features. Infection and hormonal influence are described but are not the primary pathogenetic factor: the exact aetiology remains unknown. Obesity is common and is associated with more severe disease. The main complications are fistulae, arthropathy, carcinoma and amyloidosis.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.