ICD-11 classes
14 Diseases of the skin
Inflammatory dermatoses
Papulosquamous dermatoses
EA91 — Lichen planus
EA91.5 — Lichen planus of the nails
ICD-11 EA91.5 — Lichen planus of the nails
Lichen planus of the nail most commonly presents as nail plate thinning with longitudinal grooving and ridging. Hyperpigmentation, subungual hyperkeratosis, onycholysis, and longitudinal melanonychia can also occur. Rarely, the matrix can be permanently destroyed with prominent pterygium formation. Lichen planus has been linked to childhood idiopathic nail atrophy and may overlap with twenty-nail dystrophy of childhood.
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere: