Oxygen concentrator HCPCS code
An oxygen concentrator is usually billed under HCPCS code E1390 (Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate); related codes are E1391, E1392. The 2026 Medicare DMEPOS fee schedule pays $94.56 to $177.16 (RR, rental (monthly)) for E1390, depending on the state. Medicare paid for 5,568,430 E1390 services from 4,192 suppliers in 2024.
HCPCS codes for oxygen concentrator
| Code | Description | Medicare coverage | DMEPOS fee (state range) | Medicare services |
|---|---|---|---|---|
| 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) |
Supplies and accessories
| Code | Description | Medicare coverage | DMEPOS fee (state range) | Medicare services |
|---|---|---|---|---|
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) | — |
Medicare revenue estimate for E1390
Units per month × state fee = monthly Medicare revenue. At 10 units a month, E1390 (RR) pays $1,771.60 in AK and $945.60 in CA, before the 20% patient coinsurance.
Medicare coverage policy
Frequently asked questions
What is the HCPCS code for an oxygen concentrator?
E1390: Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate. Other oxygen concentrator codes: E1391 (Oxygen concentrator, dual); E1392 (Portable oxygen concentrator).
Does Medicare cover an oxygen concentrator?
By HCPCS coverage code — E1390: Special coverage instructions apply; E1391: Special coverage instructions apply; E1392: Special coverage instructions apply.
How much does Medicare pay for an oxygen concentrator?
Under the 2026 DMEPOS fee schedule (non-rural state fees): E1390 $94.56 to $177.16 (RR, rental (monthly)); E1391 $94.56 to $177.16 (RR, rental (monthly)); E1392 $46.28 to $88.58 (RR, rental (monthly)).
Which supplies and accessories are billed with an oxygen concentrator?
K0738 (Portable gas oxygen system); E0431 (Portable gaseous 02); E0434 (Portable liquid 02); E0443 (Portable 02 contents, gas); E0444 (Portable 02 contents, liquid); E0441 (Stationary o2 contents, gas); E0442 (Stationary o2 contents, liq); E1405 (O2/water vapor enrich w/heat).
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
Part of Oxygen equipment.
Related equipment
Sources: CMS HCPCS Level II; CMS DMEPOS fee schedule 2026; CMS Medicare utilization; CMS Medicare Coverage Database. Fees are Medicare allowables (non-rural, by state), not commercial rates. Code choice depends on the exact item; check the descriptor. Not billing or legal advice.