2025 HCPCS code E0439
(Active) Effective Date: N/A Revision Date: N/A Durable Medical Equipment (DME) - Oxygen Delivery Systems and Related Supplies E- Durable Medical Equipment, Prosthetics, Orthotics, and Supplies Feed
Rental of a stationary liquid oxygen system; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing.
Modifiers may apply depending on the circumstances.Consult the CMS National Correct Coding Initiative (NCCI) edits and your local MAC for specific guidance on appropriate modifier usage for this code. Oxygen volume adjustment modifiers (QA, QB, QE, QF, QG, QR) are relevant to oxygen flow rates.
Medical necessity for a stationary liquid oxygen system is established based on the patient's condition and the documented need for supplemental oxygen therapy. The physician's order must indicate the medical necessity, including details on the oxygen flow rate and duration.Medicare requires documentation to support coverage.
The physician or other qualified healthcare provider is responsible for ordering the stationary liquid oxygen system based on the patient's diagnosed condition and documented medical necessity. The DME supplier is responsible for delivering and maintaining the equipment.
- E- Durable Medical Equipment, Prosthetics, Orthotics, and Supplies
- E0100-E8002 > Oxygen Delivery Systems and Related Supplies
In simple words: This code is for renting a machine that provides oxygen at home.The machine includes a tank of oxygen, tubes, and other parts needed to deliver the oxygen to the patient.
This HCPCS code covers the rental of a stationary liquid oxygen system designed to deliver a variable concentration of oxygen to the patient.The system comprises a liquid oxygen tank, a regulator and flowmeter for oxygen flow control, a humidifier to prevent mucous membrane dryness, a nebulizer for aerosolizing liquid medications, and either a nasal cannula or mask with connecting tubing.The rental includes the tank's contents. Clinical documentation must support medical necessity.
Example 1: A patient with chronic obstructive pulmonary disease (COPD) requires continuous supplemental oxygen at home.The physician orders a stationary liquid oxygen system for its greater oxygen capacity compared to a portable system., A patient recovering from pneumonia at home needs supplemental oxygen for a prolonged period.A stationary liquid oxygen system is chosen for convenience and cost-effectiveness over repeated refills of portable oxygen tanks., A patient with cystic fibrosis requires continuous oxygen therapy with aerosolized medications. The nebulizer functionality of the stationary liquid oxygen system facilitates efficient medication delivery.
* Physician's order specifying the need for a stationary liquid oxygen system.* Medical documentation supporting the diagnosis and medical necessity of supplemental oxygen therapy.* Documentation of the patient's oxygen flow rate (liters per minute).* Documentation of the type of oxygen delivery system (nasal cannula or mask).
** The 36-month rental limitation imposed by Medicare on stationary oxygen equipment must be considered.After this period, continued rental needs further justification of medical necessity.The supplier is responsible for ongoing maintenance and repairs during the rental period, unless otherwise specified.Specific state or local regulations might also apply.
- Global Days: The global period for DME is typically not expressed in days, but rather in a 36-month rental period (per Medicare regulations).After this period, continued rental may require additional justification of medical necessity.
- Payment Status: Active
- Modifier TC rule: A Technical Component (TC) modifier is not applicable to this code as it represents a rental of complete equipment.
- Specialties:Pulmonology, Respiratory Therapy, Home Health Care
- Place of Service:Home