ICD-11 classes
14 Diseases of the skin
Skin disorders involving specific cutaneous structures
Disorders of the epidermis and epidermal appendages
Disorders of skin colour
Developmental anomalies of skin pigmentation
LC10 — Dermal melanocytosis
ICD-11 LC10 — Dermal melanocytosis
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).
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere:
- Developmental anomalies of skin pigmentation #16112
- Developmental anomalies of skin pigmentation #23165
The diagnosis is included in 2 other classes.
- Phakomatosis caesioflammea (LD2D.Y)
- Phakomatosis caesiomarmorata (LD2D.Y)