Lichenification and lichen simplex chronicus

This code describes a chronic skin condition characterized by thickened, leathery skin (lichenification) resulting from repetitive scratching or rubbing. It often presents as intensely itchy, well-demarcated plaques.

Apply this code when documentation indicates a diagnosis of lichen simplex chronicus or localized neurodermatitis. This diagnosis is typically made based on clinical examination revealing characteristic skin changes in areas accessible to scratching.

• Differentiate from other pruritic dermatoses; this code specifically implies chronic scratching leading to skin thickening.
• Consider an additional code for the underlying cause of pruritus if identified and documented (e.g., insect bite, eczema).
• Ensure documentation clearly states "lichen simplex chronicus" or describes the characteristic lichenified plaques due to chronic scratching.