CPT code 76516 represents A-scan ultrasound echography used to measure the axial length of the eye. This diagnostic ophthalmic procedure is clinically important for accurate intraocular lens power calculation before cataract surgery and for assessing globe dimensions in various ocular conditions. Nationally, the code is relevant to ophthalmology practices, ambulatory surgical centers, and payers that cover preoperative and diagnostic ocular imaging.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, common sites of service, and the payer landscape relevant to this procedure. The publication covers billing and coding considerations, frequent modifiers associated with ophthalmic ultrasound services, and bench-marking information where available. It also outlines the clinical scenarios that typically justify the service and highlights documentation elements often required by payers.

This summary provides clinicians, billing staff, and policy analysts with a national-level briefing on the role of 76516 in eye care management, payer coverage considerations, and the operational settings where the procedure is performed. Data not available in the input is noted where applicable in detailed sections.