Chloasma of unsp eye, unspecified eyelid and periocular area

This code describes a benign, acquired hyperpigmentation of the skin around the eye, specifically affecting the eyelid and periocular region. It presents as irregular, light to dark brown patches, often symmetrical, and is commonly associated with hormonal changes, sun exposure, or certain medications.

Use this code when documentation indicates chloasma (melasma) affecting the eyelid or the skin surrounding the eye, and the specific eye (right or left) and eyelid are not specified. This diagnosis is typically made clinically based on the characteristic appearance of the skin lesions.

• Ensure the documentation clearly states "chloasma" or "melasma" and specifies the periocular area.
• Avoid using this code if the laterality of the eye or eyelid is documented; instead, select a more specific code.
• Distinguish from other periorbital hyperpigmentation conditions, such as post-inflammatory hyperpigmentation or drug-induced pigmentation, which may have different underlying causes and coding.