Allergic contact dermatitis due to food in contact w skin

This code signifies an inflammatory skin reaction resulting from direct contact with food substances, rather than ingestion. The dermatitis is an allergic response, manifesting as erythema, pruritus, vesicles, or papules on the skin surface that came into contact with the food allergen.

Apply this code when documentation clearly states allergic contact dermatitis caused by external exposure to food, such as a chef developing a rash on their hands from handling specific ingredients. It is appropriate when the patient's skin reaction is localized to the area of food contact and an allergic mechanism is suspected.

• Differentiate carefully between contact dermatitis from external food exposure and systemic reactions from ingested food.
• Ensure the documentation specifies "allergic" contact dermatitis; otherwise, a non-allergic contact dermatitis code may be more appropriate.
• Do not use this code if the dermatitis is a result of consuming the food; refer to the Excludes2 note for such cases.