E0433 HCPCS code: 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
E0433 is the HCPCS Level II code for 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. The 2026 Medicare DMEPOS fee schedule pays $46.28 to $88.58 (RR, rental (monthly)) depending on the state. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 1 per day on DME suppliers. Medicare volume fell 37% from 2022 to 2024 (289 to 183 services). In 2024, 4 suppliers billed Medicare for E0433 (rentals), serving 26 beneficiaries. Its average fee ranks 3 of 19 E04 codes billed RR (family range $5.28–$1,572.12); rural fees run 48% higher.
Code details
| Field | Value |
|---|---|
| Section | E codes — Durable medical equipment |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 33 — DMEPOS: oxygen and oxygen equipment |
| BETOS category | D1C — Oxygen and supplies |
| Added | 2010-01-01 |
| Last action effective | 2010-01-01 |
2026 Medicare DMEPOS fee schedule for E0433
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| RR | rental (monthly) | $46.28 | $88.58 | — | — |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | RR | $88.58 | — |
| AL | RR | $50.11 | $88.58 |
| AR | RR | $50.11 | $88.58 |
| AZ | RR | $49.08 | $88.58 |
| CA | RR | $48.20 | $88.58 |
| CO | RR | $50.70 | $88.58 |
| CT | RR | $50.81 | $88.58 |
| DC | RR | $49.59 | $88.58 |
| DE | RR | $49.59 | $88.58 |
| FL | RR | $50.11 | $88.58 |
| GA | RR | $50.11 | $88.58 |
| HI | RR | $88.58 | — |
| IA | RR | $50.08 | $88.58 |
| ID | RR | $50.70 | $88.58 |
| IL | RR | $49.66 | $88.58 |
| IN | RR | $49.66 | $88.58 |
| KS | RR | $50.08 | $88.58 |
| KY | RR | $50.11 | $88.58 |
| LA | RR | $50.11 | $88.58 |
| MA | RR | $50.81 | $88.58 |
| MD | RR | $49.59 | $88.58 |
| ME | RR | $50.81 | $88.58 |
| MI | RR | $49.66 | $88.58 |
| MN | RR | $50.08 | $88.58 |
| MO | RR | $50.08 | $88.58 |
| MS | RR | $50.11 | $88.58 |
| MT | RR | $50.70 | $88.58 |
| NC | RR | $50.11 | $88.58 |
| ND | RR | $50.08 | $88.58 |
| NE | RR | $50.08 | $88.58 |
| NH | RR | $50.81 | $88.58 |
| NJ | RR | $49.59 | $88.58 |
| NM | RR | $49.08 | $88.58 |
| NV | RR | $48.20 | $88.58 |
| NY | RR | $49.59 | $88.58 |
| OH | RR | $49.66 | $88.58 |
| OK | RR | $49.08 | $88.58 |
| OR | RR | $48.20 | $88.58 |
| PA | RR | $49.59 | $88.58 |
| PR | RR | $88.58 | — |
| RI | RR | $50.81 | $88.58 |
| SC | RR | $50.11 | $88.58 |
| SD | RR | $50.08 | $88.58 |
| TN | RR | $50.11 | $88.58 |
| TX | RR | $49.08 | $88.58 |
| UT | RR | $50.70 | $88.58 |
| VA | RR | $50.11 | $88.58 |
| VI | RR | $88.58 | — |
| VT | RR | $50.81 | $88.58 |
| WA | RR | $48.20 | $88.58 |
| WI | RR | $49.66 | $88.58 |
| WV | RR | $50.11 | $88.58 |
| WY | RR | $50.70 | $88.58 |
How the E0433 fee compares
| Measure | Value |
|---|---|
| Rank among 19 E04 codes billed RR (lowest = 1) | 3 |
| Family fee range (average of state fees) | $5.28–$1,572.12 |
| Rural fee uplift | 47.9% |
Who bills E0433 (2024)
| Measure | Value |
|---|---|
| Suppliers billing rentals | 4 |
| Suppliers billing purchases | — |
| Referring clinicians | 18 |
| Medicare beneficiaries | 26 |
| States with claims | 3 |
| Year | Suppliers | Beneficiaries |
|---|---|---|
| 2022 | 1 | 47 |
| 2023 | 3 | 31 |
| 2024 | 4 | 26 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for E0433, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 289 | 47 | $42.58 | $32.34 |
| 2023 | 257 | 31 | $44.70 | $33.76 |
| 2024 | 183 | 26 | $48.09 | $36.62 |
States with the most E0433 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Arkansas | 103 | $34.63 |
| North Carolina | 49 | $38.76 |
| South Carolina | 22 | $40.12 |
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 E0433
- 2026-01-01: Average state fee (RR) rose 2.6%: $50.25 to $51.55
- 2010-01-01: E0433 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 E0433?
E0433 is the HCPCS Level II code for 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. Short descriptor: "Portable liquid oxygen sys".
How much does Medicare pay for E0433?
Under the 2026 DMEPOS fee schedule, non-rural state fees are RR (rental (monthly)): $46.28–$88.58. Rural fees can be higher.
Does Medicare cover E0433?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Did the Medicare fee for E0433 change in 2026?
The average non-rural state fee for RR moved from $50.25 in 2025 to $51.55 in 2026 (+2.6%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of E0433 can be billed per day?
1 on DME suppliers (NCCI medically unlikely edits).
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)
- 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)
- E0440 — Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing
- 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 E0433
- Watch E0433 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for E0433
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule 2026; 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.