CPT code 67121 covers the surgical removal of a previously implanted intraocular lens that has subluxed or slipped into the posterior segment of the eye. This procedure is clinically important because displaced intraocular lenses can cause visual impairment, inflammation, retinal traction, and other complications that may require operative intervention. Nationally, the code is relevant to ophthalmic surgical practices, ambulatory surgical centers, and hospital-based eye services that manage complex cataract and lens-related complications.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing of the clinical context for the procedure, typical sites of service, and operational considerations that affect billing and coverage. The publication summarizes benchmarks where available, notes payer coverage considerations, and outlines the clinical circumstances that commonly lead to use of this code.

This summary offers clinicians, billing staff, and policy analysts a focused overview of what CPT code 67121 represents, why it matters for patient care and reimbursement workflows, and what types of documentation and care settings are typically involved. Data not available in the input is noted where relevant in the detailed sections.