ICD-10 Code L23.6 – Allergic contact dermatitis due to food in contact with the skin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L23.6 – Allergic contact dermatitis due to food in contact with the skin
What it is
This code identifies an allergic skin reaction caused when food touches the skin. It reflects contact dermatitis from a specific food allergen rather than ingestion-related allergy.
Clinical signs
You may see localized redness, itching, swelling, or eczematous rash at the contact site. Clinical features vary; refer to documentation for the exact food and skin distribution.
When to use this code
Use this code when the record states allergic contact dermatitis from food exposure on the skin, such as handling or direct contact. Code it when the clinician documents the food trigger and the dermatitis is attributed to that contact. Check documentation if the note only mentions a general rash or food allergy.
Do not use for
Do not use it for food intolerance, ingestion-related allergic reactions, or unspecified dermatitis without a documented contact trigger. Avoid it when the cause is another substance or when the chart does not confirm food as the allergen.
Coding tip
Confirm both the allergic dermatitis diagnosis and the food contact trigger in the provider note before assigning L23.6.