A4714 Treated water per gallon
Also known as: reverse osmosis water, purified water, deionized water
Deionized or distilled water that has been treated by reverse osmosis or other purification methods to remove minerals, bacteria, and contaminants. Used in preparation of dialysate.
In Plain Language
cleaned water for dialysis; purified water for medical use
Clinical Context
Essential component of dialysate preparation. Must meet strict chemical and microbiological standards. Water quality directly impacts dialysis efficacy and patient safety.
RVU Information
CPT A4714 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 A4714?
CPT A4714 (Treated water per gallon) is a A Codes code. Deionized or distilled water that has been treated by reverse osmosis or other purification methods to remove minerals, bacteria, and contaminants. Used in preparation of dialysate.
Does Medicare cover A4714?
Medicare coverage for A4714 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Essential component of dialysate preparation. Must meet strict chemical and microbiological standards. Water quality directly impacts dialysis efficacy and patient safety. A physician order is typically required.
When is CPT A4714 used?
Essential component of dialysate preparation. Must meet strict chemical and microbiological standards. Water quality directly impacts dialysis efficacy and patient safety.
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.