CPT code 50387 represents the fluoroscopically guided removal and replacement of an externally accessible nephroureteral stent or catheter, including radiological supervision and interpretation. This procedure is a commonly used image‑guided intervention to restore or maintain urinary drainage from the renal collecting system to an external collection device. Nationally, the code matters because it captures care delivered in hospital outpatient and interventional radiology settings and affects facility and professional billing workflows for urinary drainage management.

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 nephroureteral catheter exchange, typical sites of service, and the operational implications for billing and documentation. The publication summarizes benchmarks where available, notes common modifier usage, and highlights policy or coverage considerations relevant to payers and providers. It offers clinicians, revenue cycle leaders, and policy staff a clear reference on what the code represents, how it is typically reported, and which aspects of care and coding warrant attention in national payer contexts. Data not available in the input is identified where applicable.