CPT code 36200 denotes insertion of a catheter through a distal artery with guidewire advancement into the aorta for aortography or measurement of intra-aortic pressure. This diagnostic vascular access procedure is central to cardiovascular imaging and hemodynamic assessment and is commonly performed in hospital-based interventional radiology and cardiology settings. Nationally, accurate coding for 36200 matters for clinical documentation, appropriate billing, and ensuring capture of resource use tied to invasive arterial diagnostic procedures.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for CPT code 36200, typical sites of service, commonly associated billing modifiers, and how this code fits within related vascular and interventional procedure families. The publication also summarizes benchmark considerations and policy-relevant points affecting authorization and documentation for aortic catheterization procedures.

The content is intended to inform billing staff, compliance officers, and clinical program leaders about code definition and use, expected settings, and the types of clinical indications that drive use of CPT code 36200. Data not available in the input is noted where applicable.