Lichen nitidus
ICD-10 L44.1 is a billable code used to indicate a diagnosis of lichen nitidus.
Lichen nitidus is a benign, inflammatory skin condition characterized by small, shiny, skin-colored or slightly pink papules that typically appear on the trunk, extremities, and genital areas. The lesions are often asymptomatic but can occasionally be itchy. The exact etiology of lichen nitidus remains unclear, although it is believed to be related to an immune response, possibly triggered by stress or other environmental factors. The condition is most commonly seen in children and young adults, with a slight male predominance. Disease progression is generally self-limiting, with lesions often resolving spontaneously over months to years. Diagnosis is primarily clinical, supported by a thorough history and physical examination. In some cases, a skin biopsy may be performed to rule out other dermatoses, as the histological features of lichen nitidus include a band-like infiltrate of lymphocytes at the dermal-epidermal junction and liquefactive degeneration of the basal cell layer. Differential diagnoses include lichen planus, psoriasis, and other papular eruptions, making accurate diagnosis crucial for appropriate management.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
L44.1 specifically covers lichen nitidus, which is characterized by small, shiny papules. It does not cover other lichenoid conditions such as lichen planus or lichenoid drug eruptions.
L44.1 should be used when the clinical presentation aligns with lichen nitidus, particularly when lesions are small, shiny, and papular. It should not be used for lichen planus or other similar conditions.
Documentation should include a detailed clinical examination, description of the lesions, any relevant patient history, and, if applicable, results from a skin biopsy to confirm the diagnosis.