E0555 HCPCS code: Humidifier, durable, glass or autoclavable plastic bottle type, for use with regulator or flowmeter
E0555 is the HCPCS Level II code for humidifier, durable, glass or autoclavable plastic bottle type, for use with regulator or flowmeter. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 1 per day on DME suppliers.
Code details
| Field | Value |
|---|---|
| Section | E codes — Durable medical equipment |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 33 — DMEPOS: oxygen and oxygen equipment |
| BETOS category | D1C — Oxygen and supplies |
| Added | 1986-01-01 |
| Last action effective | 1996-01-01 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 1 | Code Descriptor / CPT Instruction |
Medicare policy articles for this code
- A52514: Oxygen and Oxygen Equipment - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
What changed for E0555
- 1986-01-01: E0555 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code E0555?
E0555 is the HCPCS Level II code for humidifier, durable, glass or autoclavable plastic bottle type, for use with regulator or flowmeter. Short descriptor: "Humidifier for use w/ regula".
Does Medicare cover E0555?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of E0555 can be billed per day?
1 on DME suppliers (NCCI medically unlikely edits).
Related E05 codes
- E0500 — Ippb machine, all types, with built-in nebulization; manual or automatic valves; internal or external power source ($132.97–$168.94)
- E0530 — Electronic positional obstructive sleep apnea treatment, with sensor, includes all components and accessories, any type ($37.12–$37.12)
- E0550 — Humidifier, durable for extensive supplemental humidification during ippb treatments or oxygen delivery ($60.73–$118.04)
- E0560 — Humidifier, durable for supplemental humidification during ippb treatment or oxygen delivery ($20.98–$225.28)
- E0561 — Humidifier, non-heated, used with positive airway pressure device ($8.46–$128.48)
- E0562 — Humidifier, heated, used with positive airway pressure device ($16.82–$316.53)
- E0565 — Compressor, air power source for equipment which is not self-contained or cylinder driven ($42.74–$82.96)
- E0570 — Nebulizer, with compressor ($6.09–$15.43)
- E0572 — Aerosol compressor, adjustable pressure, light duty for intermittent use ($29.16–$51.74)
- E0574 — Ultrasonic/electronic aerosol generator with small volume nebulizer ($48.76–$67.63)
- E0575 — Nebulizer, ultrasonic, large volume ($124.51–$159.48)
- E0580 — Nebulizer, durable, glass or autoclavable plastic, bottle type, for use with regulator or flowmeter ($16.47–$182.27)
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Next steps
- Run a reimbursement report for a device billed under E0555
- Watch E0555 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for E0555
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.