LC10 Dermal melanocytosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

The presence at birth of functional melanocytes within the dermis. Most commonly this is as a result of incomplete migration of melanocytes to the epidermis as in lumbosacral dermal melanocytosis (Mongolian spot). Less commonly it is due to circumscribed hamartomatous proliferation of melanocytes in the dermis (e.g. Naevus of Ota).

code elsewhere

• Phakomatosis caesioflammea  (LD2D.Y)
• Phakomatosis caesiomarmorata  (LD2D.Y)

synonyms

• Dermal melanocytosis
• Lumbosacral dermal melanocytosis
• Mongolian spot
• Blue spot
• Naevus of Ota
• Oculodermal melanocytosis
• Naevus of Ito
• Dermal melanocyte hamartoma

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