HCPCS Level II · Durable medical equipment
E0431Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About E0431
E0431 is an HCPCS Level II code in the E series (durable medical equipment), describing portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing.
It was added to HCPCS effective 01/01/1993, and its current record took effect 01/01/2001.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Portable gaseous 02
- Date added
- 01/01/1993
- Action effective
- 01/01/2001
- BETOS
- D1C
Related E04xx codes
- E0424Stationary compressed gaseous oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
- E0425Stationary compressed gas system, purchase; includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
- E0430Portable gaseous oxygen system, purchase; includes regulator, flowmeter, humidifier, cannula or mask, and tubing
- E0433Portable liquid oxygen system, rental; home liquefier used to fill portable liquid oxygen containers, includes portable containers, regulator, flowmeter, humidifier, cannula or mask and tubing, with or without supply reservoir and contents gauge
- E0434Portable liquid oxygen system, rental; includes portable container, supply reservoir, humidifier, flowmeter, refill adaptor, contents gauge, cannula or mask, and tubing
- E0435Portable liquid oxygen system, purchase; includes portable container, supply reservoir, flowmeter, humidifier, contents gauge, cannula or mask, tubing and refill adaptor
- E0439Stationary liquid oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, & tubing
- E0440Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
- E0441Stationary oxygen contents, gaseous, 1 month's supply = 1 unit
- E0442Stationary oxygen contents, liquid, 1 month's supply = 1 unit
- E0443Portable oxygen contents, gaseous, 1 month's supply = 1 unit
- E0444Portable oxygen contents, liquid, 1 month's supply = 1 unit
Common questions about E0431
Is HCPCS E0431 still valid?
- Yes. E0431 is active in the CMS October 2026 HCPCS file.
Does Medicare cover E0431?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.