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Keratinocytic epidermal hamartoma

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

Keratinocytic epidermal hamartoma or epidermal naevus is a congenital hamartomatous epidermal malformation composed of keratinocytes. It is thought to arise as a result of somatic mutation: early embryonic mutations can give rise to extensive systematised naevi, though typically epidermal naevi are localised linear papillomatous or verrucous plaques. Histologically they exhibit acanthosis, papillomatosis and acanthosis.

code elsewhere

• Linear porokeratosis  (ED52)

sections/codes in this section (LC00-LC00)

• Epidermal naevus  (LC00.0)
• Other specified keratinocytic epidermal hamartoma  (LC00.Y)
• Keratinocytic epidermal hamartoma, unspecified  (LC00.Z)

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