Vitiligo of left upper eyelid and periocular area

This code describes a depigmentation disorder affecting the left upper eyelid and the surrounding periocular skin. Vitiligo is characterized by well-defined, milky-white patches resulting from the destruction of melanocytes. This specific code indicates the laterality and precise anatomical location of the vitiligo.

Use this code when documentation clearly specifies vitiligo affecting the left upper eyelid and/or the periocular region. This diagnosis is typically made clinically based on the characteristic appearance of the lesions. Supporting documentation would include physician notes detailing the location and nature of the depigmentation.

• Ensure documentation specifies "left" upper eyelid and periocular area; avoid using this code for bilateral or unspecified laterality.
• Distinguish from other hypopigmentation disorders like post-inflammatory hypopigmentation or tinea versicolor, which have different ICD-10-CM codes.
• Do not use for vitiligo affecting other parts of the face or body; specific codes exist for those locations.