Medicare Oxygen Equipment HCPCS Codes
Home oxygen is billed as a monthly rental that bundles the equipment, contents and supplies. Stationary concentrators, portable systems and oxygen contents each have their own codes. This category spans 22 active HCPCS codes, 16 of them with a 2026 Medicare DMEPOS fee. Coverage is set by LCD L33797 (Oxygen and Oxygen Equipment).
Equipment in this category
Medicare coverage policy
All oxygen equipment codes
| Code | Description | Medicare coverage | DMEPOS fee (state range) | Medicare services |
|---|---|---|---|---|
| E0424 | Stationary compressed gaseous oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing | Special coverage instructions apply | $94.56–$177.16 (RR) | 3,035 (2024) |
| E0425 | Stationary compressed gas system, purchase; includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing | Special coverage instructions apply | — | — |
| E0430 | Portable gaseous oxygen system, purchase; includes regulator, flowmeter, humidifier, cannula or mask, and tubing | Special coverage instructions apply | — | — |
| E0431 | Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing | Special coverage instructions apply | $21.24–$88.58 (RR) | 2,275,426 (2024) |
| 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 | Carrier judgment | $46.28–$88.58 (RR) | 183 (2024) |
| E0434 | Portable liquid oxygen system, rental; includes portable container, supply reservoir, humidifier, flowmeter, refill adaptor, contents gauge, cannula or mask, and tubing | Special coverage instructions apply | $46.28–$88.58 (RR) | 7,252 (2024) |
| E0435 | Portable liquid oxygen system, purchase; includes portable container, supply reservoir, flowmeter, humidifier, contents gauge, cannula or mask, tubing and refill adaptor | Special coverage instructions apply | — | — |
| E0439 | Stationary liquid oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, & tubing | Special coverage instructions apply | $94.56–$177.16 (RR) | 5,492 (2024) |
| E0440 | Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing | Special coverage instructions apply | — | — |
| E0441 | Stationary oxygen contents, gaseous, 1 month's supply = 1 unit | Special coverage instructions apply | $61.92–$75.90 | 27 (2024) |
| E0442 | Stationary oxygen contents, liquid, 1 month's supply = 1 unit | Special coverage instructions apply | $61.92–$75.90 | 4,677 (2024) |
| E0443 | Portable oxygen contents, gaseous, 1 month's supply = 1 unit | Special coverage instructions apply | $56.56–$72.51 | 161,089 (2024) |
| E0444 | Portable oxygen contents, liquid, 1 month's supply = 1 unit | Special coverage instructions apply | $56.56–$72.51 | 4,649 (2024) |
| E0445 | Oximeter device for measuring blood oxygen levels non-invasively | Carrier judgment | — | — |
| E0446 | Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories | Carrier judgment | — | — |
| E0447 | Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm) | Special coverage instructions apply | $84.85–$110.11 | — |
| E1390 | Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate | Special coverage instructions apply | $94.56–$177.16 (RR) | 5,568,430 (2024) |
| E1391 | Oxygen concentrator, dual delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate, each | Special coverage instructions apply | $94.56–$177.16 (RR) | 114 (2024) |
| E1392 | Portable oxygen concentrator, rental | Special coverage instructions apply | $46.28–$88.58 (RR) | 1,733,854 (2024) |
| K0738 | Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing | Carrier judgment | $46.28–$88.58 (RR) | 272,960 (2024) |
| E1405 | Oxygen and water vapor enriching system with heated delivery | Special coverage instructions apply | $129.15–$237.92 (RR) | — |
| E1406 | Oxygen and water vapor enriching system without heated delivery | Special coverage instructions apply | $100.65–$192.59 (RR) | — |
Frequently asked questions
Which HCPCS codes are used for oxygen equipment?
E1390 (Oxygen concentrator); E0431 (Portable gaseous 02); E1392 (Portable oxygen concentrator); K0738 (Portable gas oxygen system); E0443 (Portable 02 contents, gas).
Which Medicare policy covers oxygen equipment?
L33797: Oxygen and Oxygen Equipment; A52514: Oxygen and Oxygen Equipment - Policy Article.
Which oxygen equipment codes does Medicare pay for most often?
E1390: 5,568,430 services in 2024; E0431: 2,275,426 services in 2024; E1392: 1,733,854 services in 2024; K0738: 272,960 services in 2024; E0443: 161,089 services in 2024.
Next steps
- Run a reimbursement report for a device billed under E1390
- Watch E1390 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for E1390
Sources: CMS HCPCS Level II; CMS DMEPOS fee schedule 2026; CMS Medicare Coverage Database. Not billing or legal advice.