CPT code 66183 captures a minimally invasive glaucoma surgical procedure in which a small device is inserted into the anterior chamber to lower intraocular pressure. This code is relevant nationally as MIGS procedures have expanded treatment options for glaucoma, affecting surgical workflows, device utilization, and payer coverage policies across outpatient settings. The procedure is typically performed in ambulatory surgery centers and hospital outpatient departments and is part of the growing shift toward less invasive glaucoma care.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, expected sites of service, and the operational implications of billing this surgical implant code. The publication summarizes common modifiers reported with this service and outlines where to find related policy language and coverage considerations.

The article provides benchmarks and policy summaries useful for coding managers, surgical practices, and revenue cycle teams: clinical definition and procedural context are described; payer coverage patterns and coding nuances are summarized; and implications for outpatient surgical scheduling and device inventory are highlighted. Data not available in the input is noted where applicable.