ICD-10 Code L44.1 – Lichen nitidus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L44.1 – Lichen nitidus
What it is
Lichen nitidus is a rare inflammatory skin condition that causes tiny, shiny papules. It is usually benign and often affects children or young adults.
Clinical signs
Look for pinpoint, flesh-colored to pink papules with a smooth, shiny surface. Lesions may appear on the trunk, limbs, genital area, or other localized sites; clinical features vary, so refer to documentation.
When to use this code
Use L44.1 when the provider documents lichen nitidus as the diagnosis, including cases with classic papular eruptions and a confirmed clinical impression. Code it when the note clearly identifies this specific dermatosis rather than a nonspecific rash or dermatitis.
Do not use for
Do not use this code for other papular skin disorders, eczema, or unspecified rash. If the record does not clearly state lichen nitidus, check documentation.
Coding tip
Assign the code only when the diagnosis is explicit in the chart; otherwise, query for clarification.