A4627 Spacer bag/reservoir
Also known as: spacer, holding chamber, MDI spacer, aerosol chamber
A reservoir or spacer attachment used with metered-dose inhalers (MDI) to improve drug delivery efficiency by holding aerosolized medication in a chamber before inhalation. Reduces need for hand-breath coordination and improves medication delivery to lungs.
In Plain Language
device that holds inhaler medication; inhaler helper
Clinical Context
Used to improve inhaled medication delivery, particularly in children, elderly patients, or those with coordination difficulties. Increases lung deposition from 10-20% to 60-70% compared to MDI alone.
RVU Information
CPT A4627 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 A4627?
CPT A4627 (Spacer bag/reservoir) is a A Codes code. A reservoir or spacer attachment used with metered-dose inhalers (MDI) to improve drug delivery efficiency by holding aerosolized medication in a chamber before inhalation. Reduces need for hand-breath coordination and improves medication delivery to lungs.
Does Medicare cover A4627?
Medicare coverage for A4627 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used to improve inhaled medication delivery, particularly in children, elderly patients, or those with coordination difficulties. Increases lung deposition from 10-20% to 60-70% compared to MDI alone. A physician order is typically required.
When is CPT A4627 used?
Used to improve inhaled medication delivery, particularly in children, elderly patients, or those with coordination difficulties. Increases lung deposition from 10-20% to 60-70% compared to MDI alone.
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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.