Lichen planopilaris
ICD-10 Code
L66.1
Lichen planopilaris
Definition
Lichen planopilaris (LPP) is a rare cutaneous variant of lichen planus which affects hair follicles. It may occur on its own or in association with more common forms of lichen planus, usually classical type and/or oral lichen planus.
Also known as follicular lichen planus, lichen follicularis, lichen planus follicularis, LPP — per MONDO