tinea nigra https://www.malacards.org/card/tinea_nigra icd11.foundation:1723085409 UMLS:C0152067 SCTID:183342005 A superficial mycosis that is a superficial fungal infection of the skin characterized by brown to black macules which usually occur on the palmar aspects of hands and occasionally the plantar and other surfaces of the skin, caused by Hortaea werneckii, which is a common saprophytic fungus believed to occur in soil, compost, humus and on wood in humid tropical and sub-tropical regions. MONDO:0004677 ICD10CM:B36.1 MEDGEN:508865 DOID:8912 ICD9:111.1 superficial mycosis