A4218 Sterile saline or water
Also known as: saline solution, sterile fluid, irrigation fluid
Sterile Saline or Water, large-volume container, a bulk sterile fluid preparation for wound care, irrigation, and clinical applications.
In Plain Language
large sterile saline; bulk irrigation fluid
Clinical Context
Used in hospitals and clinical settings for extensive wound care, equipment sterilization, and high-volume irrigation procedures.
RVU Information
CPT A4218 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 A4218?
CPT A4218 (Sterile saline or water) is a A Codes code. Sterile Saline or Water, large-volume container, a bulk sterile fluid preparation for wound care, irrigation, and clinical applications.
Does Medicare cover A4218?
Medicare coverage for A4218 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in hospitals and clinical settings for extensive wound care, equipment sterilization, and high-volume irrigation procedures. A physician order is typically required.
When is CPT A4218 used?
Used in hospitals and clinical settings for extensive wound care, equipment sterilization, and high-volume irrigation procedures.
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.