CPT code 36837 represents the percutaneous creation of an arteriovenous fistula in the upper limb using two separate access sites (one arterial, one venous) to establish hemodialysis access. This minimally invasive procedure is clinically important as demand for durable vascular access continues to grow with the prevalence of end-stage renal disease and increasing reliance on outpatient interventional services. Nationally, consistent coding and appropriate site-of-service designation affect access to care and payment across major payers.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for percutaneous AV fistula creation, typical sites of service, common modifiers used with this procedure (listed separately), and what is and is not available in the supplied input. The publication outlines expected benchmarks and policy-relevant considerations without offering clinical recommendations, and it highlights areas where input data are missing.

This summary prepares clinicians, billing specialists, and policy analysts to understand coding intent, anticipate payer interactions, and locate sections on benchmarks, coverage nuances, and documentation priorities. Data not available in the input will be noted in the relevant sections.