Erythema annulare centrifugum

This code represents a chronic, recurrent inflammatory skin condition characterized by slowly enlarging, erythematous, annular (ring-shaped) lesions with central clearing. The lesions typically have a raised, palpable border and can appear anywhere on the body, though they commonly affect the trunk and proximal extremities. It is a form of figurate erythema, often idiopathic but sometimes associated with underlying conditions.

Assign this code when documentation clearly identifies a diagnosis of erythema annulare centrifugum. This diagnosis is typically made based on the characteristic clinical appearance of the lesions, often supported by a skin biopsy confirming the histopathological features. Use this code for both primary and recurrent episodes of this specific dermatosis.

• Differentiate from other figurate erythemas, such as erythema migrans (L90.8) or erythema multiforme (L51.-), which have distinct clinical presentations and etiologies.
• Always review documentation for any associated underlying conditions (e.g., infections, malignancies, autoimmune diseases) that may require additional coding.
• Ensure the provider's documentation explicitly states "erythema annulare centrifugum" or provides a clear clinical description matching this condition.