CPT code 36901 covers fluoroscopic contrast injection and imaging of an entire dialysis circuit to assess blood flow or identify obstructions, with radiological supervision, interpretation, image capture, and reporting included. This vascular access diagnostic procedure is central to managing complications in patients on hemodialysis and has national relevance given the high prevalence of dialysis dependence and the clinical need to maintain functional access.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find context on clinical indications and typical sites of service, an outline of commonly applied modifiers, and a national perspective on payer coverage behaviors and billing considerations where available. The publication summarizes operational benchmarks, documentation expectations for imaging and interpretation, and common coding pitfalls specific to fluoroscopic dialysis circuit studies.

This overview is intended for billing professionals, radiology and vascular specialists, and compliance staff seeking a concise reference on coding, clinical context, and payer considerations for CPT code 36901. Data not available in the input will be identified as such in the relevant sections.