ICD-10 Code L55 – Sunburn (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L55 – Sunburn
What it is
L55 identifies sunburn, an acute skin injury caused by excessive ultraviolet exposure. It may range from mild redness to blistering and peeling, depending on severity.
Clinical signs
Typical findings include erythema, tenderness, warmth, and possible edema after sun exposure. More severe cases may show blistering, pain, or desquamation; clinical features vary, so refer to documentation.
When to use this code
Use L55 when the record documents sunburn or acute UV-related skin injury as the reason for the visit. Code it when the provider notes the condition clearly, including the affected area or severity if documented. If the note only mentions sun exposure without injury, check documentation.
Do not use for
Do not use L55 for chronic photosensitivity disorders, heat-related illness, or other nonspecific skin irritation. If the diagnosis is unclear or the record describes a different burn, check documentation.
Coding tip
Look for the provider’s final diagnosis and any documented body site or severity before assigning L55.