A7040 One way chest drainage valve
Also known as: chest drain valve, one-way valve, flutter valve
One-way chest drain valve for pleural drainage and preventing backflow of fluid in thoracic procedures.
In Plain Language
drainage valve; one-way drain; chest fluid valve
Clinical Context
Used with chest drainage systems to allow one-directional fluid flow from pleural space. Prevents air from entering pleural cavity and maintains negative pressure.
RVU Information
CPT A7040 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 A7040?
CPT A7040 (One way chest drainage valve) is a A Codes code. One-way chest drain valve for pleural drainage and preventing backflow of fluid in thoracic procedures.
Does Medicare cover A7040?
Medicare coverage for A7040 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used with chest drainage systems to allow one-directional fluid flow from pleural space. Prevents air from entering pleural cavity and maintains negative pressure. A physician order is typically required.
When is CPT A7040 used?
Used with chest drainage systems to allow one-directional fluid flow from pleural space. Prevents air from entering pleural cavity and maintains negative pressure.
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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.