Idiopathic guttate hypomelanosis
Synopsis

While the exact cause is unknown, IGH has been hypothesized to be ultraviolet (UV) induced. Other contributing factors that have been suggested include aging, trauma, genetic factors, and autoimmunity.
While IGH occurs more commonly in lighter skin phototypes, it does occur in all skin colors, and it appears more prominent in individuals with darker skin.
Codes
L81.9 – Disorder of pigmentation, unspecified
SNOMEDCT:
1717003 – Idiopathic guttate hypomelanosis
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Last Updated:03/22/2021

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