ICD-10 Code L56.2 – Photocontact dermatitis [berloque dermatitis] (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L56.2 – Photocontact dermatitis [berloque dermatitis]
What it is
L56.2 identifies photocontact dermatitis, also called berloque dermatitis. It is a skin reaction that appears after sunlight exposure interacts with a substance on the skin.
Clinical signs
Typical findings include localized redness, itching, burning, and sometimes streaky or sharply bordered pigment changes on exposed skin. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents a dermatitis caused by a photosensitizing substance plus light exposure. It may be used for berloque dermatitis or other photocontact reactions when the clinician names this diagnosis. If the note only says “rash after sun” without a clear link, check documentation.
Do not use for
Do not use it for ordinary sunburn, eczema without a photocontact trigger, or unspecified dermatitis. If the cause is unclear, check documentation before assigning L56.2.
Coding tip
Look for both the offending topical exposure and the light trigger in the provider’s note before coding.