Eczematous dermatitis of left upper eyelid

This code identifies an inflammatory skin condition affecting the left upper eyelid, characterized by redness, itching, scaling, and sometimes blistering or weeping. It represents a form of dermatitis specifically presenting with eczematous features in this precise anatomical location.

Apply this code when documentation specifies eczematous changes on the patient's left upper eyelid. This includes allergic contact dermatitis, irritant contact dermatitis, or atopic dermatitis manifesting on this specific eyelid. Supporting documentation should clearly indicate the laterality and the eczematous nature of the eyelid inflammation.

• Ensure the documentation specifies "left upper eyelid" and not just "left eyelid" or "upper eyelid."
• Distinguish from other forms of blepharitis or conjunctivitis; the key is the eczematous nature of the skin involvement.
• Consider an additional code for the underlying cause if known (e.g., contact dermatitis due to cosmetics).