lichen planus hypertrophic lichen planus https://github.com/monarch-initiative/mondo/issues/9097 ICD10CM:L43.0 Lichen planus hypertrophicus UMLS:C0023649 SCTID:68266006 NCIT:C34779 hypertrophic lichen planus MONDO:0021377 MEDGEN:9756 A form of lichen planus that is characterized by plaques of markedly thickened skin that is often extremely pruritic and localized to the lower legs. It can result in permanent pigmentation and scarring. icd11.foundation:1096967508