Melanocytic nevi of right lower eyelid, including canthus

This code identifies a benign pigmented lesion, specifically a melanocytic nevus (mole), located on the right lower eyelid, including the canthus. These nevi are typically congenital or acquired skin growths composed of nevus cells, which are a type of melanocyte. They are generally harmless but may be monitored for changes.

Use this code when documentation clearly indicates a diagnosis of a melanocytic nevus affecting the right lower eyelid or the canthal region of the right eye. This diagnosis is typically made during a physical examination by an ophthalmologist or dermatologist. Supporting documentation should specify the lesion's benign nature and its precise anatomical location.

• Ensure the documentation specifies "melanocytic nevus" and not another type of eyelid lesion (e.g., sebaceous cyst, basal cell carcinoma).
• Verify laterality; this code is specific to the right lower eyelid.
• Distinguish from D22.111 (left lower eyelid) and D22.119 (unspecified lower eyelid).