ICD-10 Code L53.0 – Toxic erythema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L53.0 – Toxic erythema
What it is
Toxic erythema is a superficial skin redness caused by exposure to an irritant or toxic agent. Use this code for erythematous skin changes when the documented diagnosis is toxic erythema.
Clinical signs
Findings usually include diffuse or localized redness, sometimes with mild swelling or burning. Clinical features vary; refer to documentation if the cause, distribution, or severity is unclear.
When to use this code
Use L53.0 when the provider documents toxic erythema as the diagnosis, especially when the record links the rash to a chemical, medication, or other toxic exposure. Code it when the note identifies erythema rather than a more specific dermatitis or burn.
If the chart only says “rash” or “skin irritation,” check documentation before assigning this code. Make sure the condition is not better described by another erythema, dermatitis, or adverse reaction code.
Do not use for
Do not use this code for nonspecific rash, allergic dermatitis, or burns unless toxic erythema is explicitly documented. Check documentation when the skin finding has a clearer alternate diagnosis.
Coding tip
Code L53.0 only when “toxic erythema” is stated; otherwise, query for the exact skin diagnosis.