Contact dermatitis and other eczema due to other chemical products

This code represents an inflammatory skin reaction (dermatitis or eczema) caused by direct contact with chemical substances other than those specifically classified elsewhere (e.g., drugs, cosmetics, plants). It manifests as redness, itching, swelling, and sometimes blistering or scaling of the skin at the site of contact. This reaction is typically an irritant contact dermatitis or an allergic contact dermatitis.

Use this code when documentation clearly indicates a contact dermatitis or eczema resulting from exposure to various industrial chemicals, cleaning agents, dyes, or other chemical products not covered by more specific ICD-9-CM codes. Supporting documentation would include a physician's diagnosis of contact dermatitis and a clear identification of the causative chemical agent.

• Ensure the documentation specifies "other chemical products" to differentiate from contact dermatitis due to drugs, cosmetics, or plants.
• Do not use this code for allergic reactions to food ingested, which would fall under different categories.
• Consider an external cause code (E-code) to identify the specific chemical agent and circumstances of exposure, if known and documented.