Nummular dermatitis

This code represents nummular dermatitis, also known as discoid eczema, a chronic inflammatory skin condition characterized by coin-shaped or oval lesions. These lesions are typically itchy, red, and scaly, often appearing on the extremities and trunk. The condition can be persistent and recurrent.

Assign this code when documentation clearly indicates a diagnosis of nummular dermatitis. This diagnosis is typically made based on the characteristic morphology and distribution of the skin lesions. Supporting documentation should include a physician's diagnostic statement.

• Differentiate from other eczematous conditions like atopic dermatitis or contact dermatitis, which have distinct codes.
• Do not use for non-specific eczema; ensure the "nummular" or "discoid" descriptor is present.
• Consider additional codes for any associated complications, such as secondary bacterial infection.