Preferred Label : Progressive macular hypomelanosis;
ICD-11 definition : Progressive macular hypomelanosis (PMH) is a common acquired dermatosis occurring
in all skin types but most obvious in darker skin types. It is characterised by the
progressive appearance of ill‐defined nummular non-scaling macules mainly affecting
the trunk. It typically presents in adolescence or early adulthood and then persists.
The cause of the pigment loss is unknown but Propionibacterium species have been implicated.;
ICD-11 synonym : PMH - [Progressive macular hypomelanosis];
ICD-11 acronym : PMH;
Origin ID : 1864698060;
Automatic exact mappings (from CISMeF team)
Progressive macular hypomelanosis (PMH) is a common acquired dermatosis occurring
in all skin types but most obvious in darker skin types. It is characterised by the
progressive appearance of ill‐defined nummular non-scaling macules mainly affecting
the trunk. It typically presents in adolescence or early adulthood and then persists.
The cause of the pigment loss is unknown but Propionibacterium species have been implicated.
