E0440 HCPCS code: Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
E0440 is the HCPCS Level II code for stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met.
Code details
| Field | Value |
|---|---|
| Section | E codes — Durable medical equipment |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | D1C — Oxygen and supplies |
| Added | 1986-01-01 |
| Last action effective | 1993-01-01 |
What changed for E0440
- 1986-01-01: E0440 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 E0440?
E0440 is the HCPCS Level II code for stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing. Short descriptor: "Oxygen system liquid station".
Does Medicare cover E0440?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Related E04 codes
- E0424 — Stationary compressed gaseous oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing ($94.56–$177.16)
- E0425 — Stationary compressed gas system, purchase; includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
- E0430 — Portable gaseous oxygen system, purchase; includes regulator, flowmeter, humidifier, cannula or mask, and tubing
- E0431 — Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing ($21.24–$88.58)
- E0433 — Portable 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 ($46.28–$88.58)
- E0434 — Portable liquid oxygen system, rental; includes portable container, supply reservoir, humidifier, flowmeter, refill adaptor, contents gauge, cannula or mask, and tubing ($46.28–$88.58)
- E0435 — Portable liquid oxygen system, purchase; includes portable container, supply reservoir, flowmeter, humidifier, contents gauge, cannula or mask, tubing and refill adaptor
- E0439 — Stationary liquid oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, & tubing ($94.56–$177.16)
- E0441 — Stationary oxygen contents, gaseous, 1 month's supply = 1 unit ($61.92–$75.90)
- E0442 — Stationary oxygen contents, liquid, 1 month's supply = 1 unit ($61.92–$75.90)
- E0443 — Portable oxygen contents, gaseous, 1 month's supply = 1 unit ($56.56–$72.51)
- E0444 — Portable oxygen contents, liquid, 1 month's supply = 1 unit ($56.56–$72.51)
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Next steps
- Run a reimbursement report for a device billed under E0440
- Watch E0440 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for E0440
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.