ICD-11 classes
02 Neoplasms
Benign neoplasms, except of lymphoid, haematopoietic,...
Benign non-mesenchymal neoplasms
Benign cutaneous neoplasms
2F20 — Benign cutaneous melanocytic neoplasms
2F20.1 — Atypical melanocytic naevus

ICD-11 2F20.1 — Atypical melanocytic naevus

Solitary or multiple, slightly raised, pigmented lesions with irregular borders, usually measuring more than 0.6cm in greatest dimension. Morphologically, there is melanocytic atypia and the differential diagnosis from melanoma may be difficult. Patients are at an increased risk for the development of melanoma.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Benign cutaneous melanocytic neoplasms #17380