A4672 Drainage external line, dialysis
Also known as: extension tubing, drain line, blood line
An extension line or tubing used in hemodialysis to connect the patient's vascular access to the dialysis machine and facilitate drainage of blood and dialysate.
In Plain Language
tube connecting access to dialysis machine; extension line for dialysis
Clinical Context
Used in hemodialysis to facilitate blood flow and drainage. Part of the extracorporeal circuit. Must be sterile and free from defects.
RVU Information
CPT A4672 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 A4672?
CPT A4672 (Drainage external line, dialysis) is a A Codes code. An extension line or tubing used in hemodialysis to connect the patient's vascular access to the dialysis machine and facilitate drainage of blood and dialysate.
Does Medicare cover A4672?
Medicare coverage for A4672 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in hemodialysis to facilitate blood flow and drainage. Part of the extracorporeal circuit. Must be sterile and free from defects. A physician order is typically required.
When is CPT A4672 used?
Used in hemodialysis to facilitate blood flow and drainage. Part of the extracorporeal circuit. Must be sterile and free from defects.
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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.