Unspecified contact dermatitis due to dyes

This code signifies an inflammatory skin reaction resulting from direct contact with an unspecified dye, where the specific type of contact dermatitis (e.g., irritant or allergic) is not documented. It presents as redness, itching, swelling, or blistering in the area of exposure.

Apply this code when the patient presents with symptoms of contact dermatitis, and the medical record clearly identifies a dye as the causative agent, but the specific nature of the dermatitis (allergic vs. irritant) is not specified by the provider. Documentation should confirm exposure to a dye and the resulting dermatological reaction.

• Avoid using this code if the type of contact dermatitis (allergic or irritant) is specified; instead, use the more specific codes from the L23 or L24 categories.
• Always seek clarification from the provider if the documentation is ambiguous regarding the type of contact dermatitis.
• Consider an external cause code (e.g., from Chapter 20) to identify the specific dye if known and documented.