ICD-10 Code L44.2 – Lichen striatus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L44.2 – Lichen striatus
What it is
Lichen striatus is an inflammatory skin condition that usually appears as a linear rash following Blaschko lines. You use this code when the documentation identifies this specific diagnosis.
Clinical signs
Typical findings include small, flat-topped papules arranged in a streak or band, most often on an arm or leg. Clinical features vary; refer to documentation.
When to use this code
Use L44.2 when the provider documents lichen striatus by name or clearly describes a linear papular eruption consistent with it. Apply it for confirmed encounters, specialty consults, or follow-up visits tied to the diagnosis. If the note is vague, check documentation.
Do not use for
Do not use this code for nonspecific rashes, eczema, or other linear dermatoses without documentation of lichen striatus. If the chart does not support the diagnosis, check documentation.
Coding tip
Code only when the provider names lichen striatus or documents enough detail to support it.