CPT code 75561 denotes a diagnostic cardiac magnetic resonance imaging (MRI) procedure performed both without and then with intravenous contrast to evaluate cardiac structure and function. This code is widely used in cardiovascular imaging to characterize ventricular function, myocardial tissue properties, and vascular anatomy when contrast enhancement is needed after initial noncontrast sequences. Its national relevance stems from the role of cardiac MRI in diagnosis, treatment planning, and management of heart disease across tertiary centers and outpatient imaging facilities.

Key payers covered in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coverage considerations and payer-specific coding practices, benchmark utilization patterns, and clinical context explaining when noncontrast plus contrast cardiac MRI is clinically indicated. The publication also summarizes common modifier usage and related billing considerations where available.

This piece is intended for billing managers, radiology and cardiology department leaders, and payers seeking concise guidance on coding and billing for combined noncontrast and contrast cardiac MRI. It provides actionable clarity on the service definition, sites of service, and what to expect in payer interactions. Data not available in the input is explicitly noted where applicable.