CPT code 67921 denotes a suture repair of lower eyelid entropion, a common oculoplastic procedure that repositions the eyelid margin to prevent lashes from abrading the ocular surface. Nationally, this code is used by ophthalmic surgeons and oculoplastic specialists in outpatient surgical settings to treat symptomatic entropion that causes tearing, irritation, or corneal risk. The code matters because timely repair reduces complications, prevents vision-threatening sequelae, and generates discrete surgical billing for specialty providers.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise benchmarks and coverage considerations for payers, a summary of typical sites of service and clinical context, and guidance on how 67921 is categorized within surgical service lines. The publication summarizes common billing modifiers and payer lists (data not available for some fields) and outlines how the procedure fits into ambulatory ophthalmic surgical workflows. This review is intended for coding professionals, revenue cycle staff, and clinical leaders seeking a national-level reference on procedural classification and practice context for CPT code 67921.