Tinea manuum

This code represents a dermatophyte infection of the hands, commonly known as ringworm of the hand. It is a fungal infection affecting the palms, fingers, and interdigital spaces, often presenting with scaling, erythema, and sometimes vesicles or bullae.

Assign this code when documentation clearly indicates a diagnosis of tinea manuum. This typically includes clinical findings such as characteristic skin lesions on the hands, often confirmed by a potassium hydroxide (KOH) microscopic examination or fungal culture.

• Differentiate from other hand dermatoses like contact dermatitis or eczema; documentation must specify fungal etiology.
• If the infection is bilateral, this single code is sufficient as it does not specify laterality.
• Consider additional codes for any associated complications, such as secondary bacterial infection, if documented.