A7504 Tracheostoma hmes filter
Also known as: HME filter, heat moisture filter, artificial nose
Heat and moisture exchange filter for tracheostomy tubes to warm and humidify inspired air.
In Plain Language
moisture filter; warming filter; artificial nose
Clinical Context
Used with tracheostomy tubes to provide passive humidification and warming of inspired air. Reduces airway irritation and mucus plugging.
RVU Information
CPT A7504 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 A7504?
CPT A7504 (Tracheostoma hmes filter) is a A Codes code. Heat and moisture exchange filter for tracheostomy tubes to warm and humidify inspired air.
Does Medicare cover A7504?
Medicare coverage for A7504 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used with tracheostomy tubes to provide passive humidification and warming of inspired air. Reduces airway irritation and mucus plugging. A physician order is typically required.
When is CPT A7504 used?
Used with tracheostomy tubes to provide passive humidification and warming of inspired air. Reduces airway irritation and mucus plugging.
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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.