Congenital dermal melanocytosis (previously referred to as Mongolian spot) is a congenital, benign, blue to gray patch caused by an increased number of dermal melanocytes. These patches are commonly seen in the sacrococcygeal area in infants of Asian or African descent but may be found on any cutaneous surface in infants of all ethnicities. The pigmentation becomes most intense at 1 year of age, reaches its peak diameter by 2 years of age, and usually fades completely by adulthood.
Related topic: acquired dermal melanocytosis
Congenital dermal melanocytosis in Child
See also in: AnogenitalAlerts and Notices
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Synopsis
Codes
ICD10CM:
Q82.8 – Other specified congenital malformations of skin
SNOMEDCT:
40467008 – Mongolian spot
Q82.8 – Other specified congenital malformations of skin
SNOMEDCT:
40467008 – Mongolian spot
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Last Updated:02/08/2021
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Congenital dermal melanocytosis in Child
See also in: Anogenital