CPT code 93924 covers noninvasive vascular testing that measures arterial blood flow in the legs before and after exercise, using techniques such as bidirectional Doppler waveform analysis, volume plethysmography, and ankle-brachial index measurement. This evaluation is used to detect peripheral arterial occlusive disease and to assess changes in perfusion related to exertion. Nationally, this code matters because peripheral arterial disease affects a sizeable patient population and exercise-based vascular assessments guide diagnosis and management decisions across outpatient and hospital settings.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of the clinical purpose of the code, typical sites of service, common billing modifiers (listed separately), and how the service fits into vascular diagnostic pathways. The publication summarizes benchmarks for utilization and coverage patterns where available, clarifies documentation and service expectations tied to this code, and situates 93924 alongside related vascular testing services for clinical context.

This summary is intended for billing managers, vascular laboratory leaders, and policy analysts seeking a clear national-level overview of what CPT code 93924 represents, how it is used clinically, and which major payers commonly cover the service. Data not available in the input is identified where relevant.