E0446 – Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
HCPCS Level II code · E codes: Durable Medical Equipment (DME)
HCPCS codeE0446
- Long description
- Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
- Short description
- Topical ox deliver sys, nos
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
D1EOther DME- Added
- January 1, 2011
- Last change
- October 1, 2017 – No change
Frequently asked questions
What is HCPCS code E0446?
E0446 is a HCPCS Level II code for topical oxygen delivery system, not otherwise specified, includes all supplies and accessories.
Does Medicare cover E0446?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby E codes
- 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
- 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
- E0442 – Stationary oxygen contents, liquid, 1 month's supply = 1 unit
- E0443 – Portable oxygen contents, gaseous, 1 month's supply = 1 unit
- E0444 – Portable oxygen contents, liquid, 1 month's supply = 1 unit
- E0445 – Oximeter device for measuring blood oxygen levels non-invasively
- E0447 – Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)
- E0450 – Volume control ventilator, without pressure support mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)
- E0455 – Oxygen tent, excluding croup or pediatric tents
- E0457 – Chest shell (cuirass)
- E0459 – Chest wrap
- E0460 – Negative pressure ventilator; portable or stationary
- E0461 – Volume control ventilator, without pressure support mode, may include pressure control mode, used with non-invasive interface (e.g., mask)
- E0462 – Rocking bed with or without side rails
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.