Summary & Overview
HCPCS G0365: Hemodialysis Access Vessel Mapping
HCPCS Level II code G0365 represents preoperative vessel mapping for hemodialysis access, an imaging and assessment service used to identify suitable arterial inflow and venous outflow for creation of an autogenous hemodialysis conduit. Nationally, this service is a critical step in planning durable vascular access for patients who require chronic hemodialysis, impacting surgical decisions and access outcomes. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn what G0365 covers clinically and operationally, the typical sites where the service is delivered, common modifiers used in billing, and how this code fits into preoperative care pathways for dialysis access creation. The publication provides benchmarks and payer coverage context where available, summarizes clinical relevance for vascular surgery and nephrology teams, and highlights documentation elements and billing considerations. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code G0365 describes vessel mapping for hemodialysis access performed as a preoperative service to identify suitable arterial inflow and venous outflow vessels prior to creation of an autogenous hemodialysis conduit. This service involves imaging and assessment of the vascular anatomy to guide surgical planning for permanent hemodialysis access creation.
Service Type: Preoperative vascular mapping and imaging
Typical Site of Service: Outpatient vascular laboratory or outpatient imaging center, often ordered by vascular surgery, interventional radiology, or nephrology teams for patients preparing for hemodialysis access creation.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with end-stage renal disease (ESRD) on chronic hemodialysis is evaluated for creation of an autogenous arteriovenous fistula. The vascular surgeon orders preoperative imaging to map upper extremity arterial inflow and venous outflow to determine vessel size, patency, and suitability for fistula creation. The patient presents to an outpatient vascular laboratory or hospital-based imaging department for duplex ultrasound vessel mapping. The sonographer performs bilateral upper extremity arterial and venous duplex studies including vein diameter measurements, assessment of stenosis or thrombosis, arterial waveform analysis, and mapping of superficial and deep veins. The study report documents vessel diameters, presence of calcification or stenosis, central venous patency, and recommended site for fistula creation. The professional component (interpretation and report) and technical component (sonographer, equipment, facility) are often billed separately using modifier 26 for the professional component and modifier TC for the technical component. Typical site of service is an outpatient vascular laboratory, hospital outpatient imaging department, or ambulatory surgery center during preoperative evaluation for hemodialysis access creation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component |