A4918 Venous pressure clamp
Also known as: pressure clamp, flow clamp, blood clamp
A plastic or stainless steel clamp used to regulate or stop blood flow in venous pressure monitoring lines or dialysis tubing during hemodialysis.
In Plain Language
clamp to control blood flow tube; pressure line clamp
Clinical Context
Used in hemodialysis to monitor venous pressure and control blood flow. Allows temporary cessation of flow for pressure monitoring or troubleshooting.
RVU Information
CPT A4918 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 A4918?
CPT A4918 (Venous pressure clamp) is a A Codes code. A plastic or stainless steel clamp used to regulate or stop blood flow in venous pressure monitoring lines or dialysis tubing during hemodialysis.
Does Medicare cover A4918?
Medicare coverage for A4918 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in hemodialysis to monitor venous pressure and control blood flow. Allows temporary cessation of flow for pressure monitoring or troubleshooting. A physician order is typically required.
When is CPT A4918 used?
Used in hemodialysis to monitor venous pressure and control blood flow. Allows temporary cessation of flow for pressure monitoring or troubleshooting.
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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.