2F20.1 Atypical melanocytic naevus

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

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.

inclusions

• Dysplastic naevus, unspecified

postcoordination

synonyms

• Atypical melanocytic naevus
• Dysplastic naevus, unspecified
• Multiple atypical melanocytic naevi
• Melanocytic naevus with mild to moderate dysplasia

Thank you for choosing Find-A-Code, please Sign In to remove ads.