A4755 Comb artery/venous blood tubing
Also known as: combined blood lines, arterial-venous set, dual line tubing
Combined arterial and venous blood tubing set used in hemodialysis to connect vascular access to dialysis machine. Integrates both lines in single assembly.
In Plain Language
dual tubes for dialysis; combined blood line set
Clinical Context
Pre-assembled arterial-venous blood line sets used in hemodialysis. Reduces setup time and connection sites. Changed with each dialysis treatment.
RVU Information
CPT A4755 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
HCPCS A-codes cover medical supplies, equipment, and transport services. Documentation must establish medical necessity and include a physician order. For durable medical equipment (DME), a Certificate of Medical Necessity (CMN) or detailed written order may be required.
Specialties
Frequently Asked Questions
What is CPT code A4755?
CPT A4755 (Comb artery/venous blood tubing) is a A Codes code. Combined arterial and venous blood tubing set used in hemodialysis to connect vascular access to dialysis machine. Integrates both lines in single assembly.
Does Medicare cover A4755?
Medicare coverage for A4755 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Pre-assembled arterial-venous blood line sets used in hemodialysis. Reduces setup time and connection sites. Changed with each dialysis treatment. A physician order is typically required.
When is CPT A4755 used?
Pre-assembled arterial-venous blood line sets used in hemodialysis. Reduces setup time and connection sites. Changed with each dialysis treatment.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.