ICD-11 classes
14 Diseases of the skin
Skin disorders involving specific cutaneous structures
Disorders of the epidermis and epidermal appendages
Disorders of hair
ED70 — Alopecia or hair loss
ED70.5 — Scarring alopecia

ICD-11 ED70.5 — Scarring alopecia

Hair loss in which there is irreversible damage to the hair follicle from inflammation, infection malignant infiltration or trauma, resulting in destruction of the follicle and repair by fibrosis. Regeneration does not occur once the follicle has been destroyed.

Diagnosis with code ED70.5 contains 4 clarifying diagnoses:

1. ED70.50 — Folliculitis decalvans
2. ED70.51 — Dissecting cellulitis
3. ED70.5Y — Scarring alopecia due to other specified cause
4. ED70.5Z — Scarring alopecia of unknown or unspecified aetiology