ICD-10 Code L23.7 – Allergic contact dermatitis due to plants, except food (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L23.7 – Allergic contact dermatitis due to plants, except food
What it is
L23.7 identifies allergic contact dermatitis caused by contact with plants other than foods. Use it when the record shows a plant-triggered allergic skin reaction, not an irritant rash or a food allergy.
Clinical signs
Typical findings include itchy, red, inflamed skin, often with papules or vesicles at the contact site. Clinical features vary; refer to documentation for the plant exposure and the pattern of dermatitis.
When to use this code
Use this code when the clinician documents allergic contact dermatitis from poison ivy, poison oak, or another non-food plant. It also fits documented plant exposure with a confirmed allergic dermatitis diagnosis. Check documentation if the note does not clearly identify the plant source.
Do not use for
Do not use L23.7 for food-related allergic reactions or for simple irritant contact dermatitis. If the cause is unknown or not documented, check documentation before assigning this code.
Coding tip
Code the specific plant cause when documented, because that detail supports L23.7 and improves specificity.