ICD-11 classes
14 Diseases of the skin
Inflammatory dermatoses
Papulosquamous dermatoses
EA91 — Lichen planus
EA91.1 — Hypertrophic lichen planus

ICD-11 EA91.1 — Hypertrophic lichen planus

A chronic recalcitrant form of lichen planus often localised to the lower legs and ankles and characterised by plaques of markedly thickened skin. It is often extremely pruritic. It can leave permanent pigmentation and scarring.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.