Lichen nitidus

This code represents a chronic inflammatory skin condition characterized by numerous, small, shiny, flesh-colored to reddish-brown papules. These lesions typically appear in clusters and are often asymptomatic, though mild pruritus may occur. The condition is benign and usually resolves spontaneously over several months to years.

Use this code when documentation clearly indicates a diagnosis of lichen nitidus, often confirmed by clinical examination and sometimes by skin biopsy. This diagnosis is typically made by a dermatologist. It applies to both localized and generalized forms of the condition.

• Ensure the documentation specifies "lichen nitidus" to differentiate it from other lichenoid dermatoses.
• Do not confuse with lichen planus (L43.-) or lichen sclerosus (L90.0), which are distinct conditions.
• This code is a definitive diagnosis and generally does not require additional codes for symptoms unless they are significant and separately documented (e.g., severe pruritus).