A4618 Breathing circuits
Also known as: breathing circuit, ventilator circuit
Breathing circuits for ventilator and respiratory support systems.
In Plain Language
lung connection tubing
Clinical Context
Used in mechanical ventilation and positive pressure systems. Circuits connect ventilator to patient and include tubing and connections.
RVU Information
CPT A4618 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 A4618?
CPT A4618 (Breathing circuits) is a A Codes code. Breathing circuits for ventilator and respiratory support systems.
Does Medicare cover A4618?
Medicare coverage for A4618 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in mechanical ventilation and positive pressure systems. Circuits connect ventilator to patient and include tubing and connections. A physician order is typically required.
When is CPT A4618 used?
Used in mechanical ventilation and positive pressure systems. Circuits connect ventilator to patient and include tubing and connections.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
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.