E0446 HCPCS Level II code: Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
E0446 is the HCPCS code for “Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
E0446Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
Short description: Topical ox deliver sys, nos
HCPCS · United States
Notes for E0446
As CMS prints them, with any note E0446 takes from the headings above it.
Note
- CMS processing note 0170: SEE NCD 20.29.
Medicare details
The indicators CMS publishes with E0446 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Other medical items or services
- BETOS category
- Other DME
- Added
- Jan 1, 2011
Where E0446 sits
- 1E codesDurable medical equipment
- 2Active code E0446Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code E0446 mean?
E0446 is the HCPCS code for “Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover E0446?
CMS lists E0446’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside E0446
All E codesE0440Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubingE0441Stationary oxygen contents, gaseous, 1 month's supply = 1 unitE0442Stationary oxygen contents, liquid, 1 month's supply = 1 unitE0443Portable oxygen contents, gaseous, 1 month's supply = 1 unitE0444Portable oxygen contents, liquid, 1 month's supply = 1 unitE0445Oximeter device for measuring blood oxygen levels non-invasivelyE0447Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)E0450Volume control ventilator, without pressure support mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)E0455Oxygen tent, excluding croup or pediatric tentsE0457Chest shell (cuirass)E0459Chest wrapE0460Negative pressure ventilator; portable or stationary