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2025 HCPCS code E1390

Oxygen concentrator, single delivery port, capable of delivering 85% or greater oxygen concentration at the prescribed flow rate.

Medicare covers oxygen and oxygen equipment under specific guidelines (Social Security Act, Sections 1834(a)(5) and (a)(9)). There is a 36-month cap on monthly rental payments. After the 36-month rental cap, payment continues for oxygen contents used with the equipment for the remainder of its reasonable useful lifetime if there is continued medical need.

Various modifiers can be applied to this code to indicate specific circumstances, such as rental or purchase options, catastrophe/disaster-related use, emergency reserve supply, or when the prescribed amounts of oxygen for daytime and nighttime use differ. Refer to the HCPCS modifier list for appropriate use.

Medical necessity for an oxygen concentrator is established by the patient's underlying condition and their need for supplemental oxygen to maintain adequate oxygen saturation levels. Documentation supporting the medical necessity should be present in patient record.

The prescribing provider is responsible for documenting the patient's condition and the medical necessity for the oxygen concentrator.

In simple words: This code covers a machine that takes oxygen from the air and gives it to a patient who needs extra oxygen to breathe. It provides highly concentrated oxygen through a small tube in the nose.

This code represents the supply of an oxygen concentrator with a single delivery port, capable of delivering 85% or greater oxygen concentration at the prescribed flow rate to the patient. It can be either a portable or stationary device. The device concentrates oxygen from the surrounding air and delivers it to the patient through a nasal cannula.

Example 1: A patient with chronic obstructive pulmonary disease (COPD) requires supplemental oxygen at home and is prescribed a stationary oxygen concentrator., A patient with cystic fibrosis needs a portable oxygen concentrator to maintain adequate oxygen levels while traveling., A patient recovering from pneumonia requires temporary supplemental oxygen and is prescribed a stationary oxygen concentrator for use during the recovery period.

Documentation should include the patient's diagnosis, the prescribed oxygen flow rate, the type of concentrator (portable or stationary), and the medical necessity for the device.

** Medicare payments for oxygen and oxygen equipment include payment for the stationary equipment, supplies, and oxygen contents (stationary and portable). Additional payments are made for portable oxygen equipment if used separately. If a patient uses a portable concentrator or transfilling machine at home, a higher add-on payment applies.

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