HCPCS Level II code C7515 represents a combined diagnostic and therapeutic endovascular procedure for dialysis access circuits: diagnostic angiography of the dialysis circuit with introduction of needles or catheters and permanent embolization or occlusion of the main circuit or accessory veins. This complex interventional radiology service is significant nationally because it addresses complications of hemodialysis access, can impact dialysis adequacy and access longevity, and typically involves inpatient or hospital outpatient interventional suites or ambulatory surgical centers.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise overview of the clinical and procedural scope of the code, payer coverage context, common modifiers, and national reimbursement and policy considerations relevant to interventional radiology and dialysis access management. The publication outlines clinical context for use of the code, typical sites of service, and what to expect in claims documentation. Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and specific payer fee benchmarks is noted where relevant.