HCPCS Level II · Durable medical equipment
E0550Humidifier, durable for extensive supplemental humidification during ippb treatments or oxygen delivery
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About E0550
E0550 is an HCPCS Level II code in the E series (durable medical equipment), describing humidifier, durable for extensive supplemental humidification during ippb treatments or oxygen delivery.
It was added to HCPCS effective 01/01/1986, and its current record took effect 07/01/2005.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Humidif extens supple w ippb
- Date added
- 01/01/1986
- Action effective
- 07/01/2005
- BETOS
- D1E
Related E05xx codes
- E0500Ippb machine, all types, with built-in nebulization; manual or automatic valves; internal or external power source
- E0530Electronic positional obstructive sleep apnea treatment, with sensor, includes all components and accessories, any type
- E0555Humidifier, durable, glass or autoclavable plastic bottle type, for use with regulator or flowmeter
- E0560Humidifier, durable for supplemental humidification during ippb treatment or oxygen delivery
- E0561Humidifier, non-heated, used with positive airway pressure device
- E0562Humidifier, heated, used with positive airway pressure device
- E0565Compressor, air power source for equipment which is not self-contained or cylinder driven
- E0570Nebulizer, with compressor
- E0572Aerosol compressor, adjustable pressure, light duty for intermittent use
- E0574Ultrasonic/electronic aerosol generator with small volume nebulizer
- E0575Nebulizer, ultrasonic, large volume
- E0580Nebulizer, durable, glass or autoclavable plastic, bottle type, for use with regulator or flowmeter
Common questions about E0550
Is HCPCS E0550 still valid?
- Yes. E0550 is active in the CMS October 2026 HCPCS file.
Does Medicare cover E0550?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.