CPT code 93564 represents a diagnostic invasive coronary angiography specifically performed for patients with congenital heart disease. The procedure involves catheter insertion into native coronary arteries and any bypass grafts, contrast injection, supervised image acquisition, image interpretation, and a formal report. As a focused angiographic evaluation in complex congenital anatomy, this code is used in tertiary care and hospital-based cardiac catheterization laboratories and has implications for resource use, facility scheduling, and specialist billing.

Key payers in this national overview include Aetna, Blue Cross Blue Shield plans, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of clinical context and typical site of service, plus guidance on what to expect in comparative benchmarks and policy considerations. The publication outlines common billing modifiers and coding relationships where available, summarizes payer coverage patterns, and highlights clinical scenarios that commonly prompt use of this code, such as evaluation of coronary artery anatomy or bypass graft assessment in congenital heart disease.

This summary is intended for billing managers, clinicians, and policy analysts seeking a concise reference to CPT code 93564, its clinical use, and the payer landscape nationally. Data not available in the input is noted where applicable.