Elephantiasis of left eye, unspecified eyelid

This code signifies a chronic, severe swelling of the left eyelid due to lymphatic obstruction, characterized by thickening of the skin and subcutaneous tissue, giving it a rough, "elephant-like" appearance. It represents a specific manifestation of lymphedema affecting the ocular adnexa.

Use this code when documentation explicitly states "elephantiasis of the left eyelid" without further specification of which eyelid (upper or lower). This diagnosis typically arises from chronic inflammation, infection (e.g., filariasis), or surgical disruption of lymphatic drainage.

• Ensure documentation specifies "left eye" and "unspecified eyelid" to accurately assign this code.
• Distinguish from simple edema or cellulitis of the eyelid, which are temporary and lack the chronic, hypertrophic changes of elephantiasis.
• Code any underlying cause of the elephantiasis (e.g., parasitic infection, malignancy) as an additional diagnosis.