Joseph C. English

Acanthosis Nigricans (ICD-9 code 701.2) Are You Confident of the Diagnosis? What you should be alert for in the history Acanthosis nigricans (AN) is a skin disease characterized by symmetric, velvety, hyperpigmented plaques that may occur in any location of the body. Given the association between AN and various systemic abnormalities, (including insulin resistance, obesity,…