S8121 HCPCS Level II code: Oxygen contents, liquid, 1 unit equals 1 pound
S8121 is the HCPCS code for “Oxygen contents, liquid, 1 unit equals 1 pound” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
S8121Oxygen contents, liquid, 1 unit equals 1 pound
Short description: O2 contents liquid lb
HCPCS · United States
Medicare details
The indicators CMS publishes with S8121 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- 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
- Undefined codes
- Added
- Oct 1, 2003
Where S8121 sits
- 1S codesTemporary national codes (non-Medicare)
- 2Active code S8121Oxygen contents, liquid, 1 unit equals 1 pound
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 S8121 mean?
S8121 is the HCPCS code for “Oxygen contents, liquid, 1 unit equals 1 pound” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover S8121?
CMS lists S8121’s Medicare coverage as “Not payable by Medicare” 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 S8121
All S codesS8096Portable peak flow meterS8097Asthma kit (including but not limited to portable peak expiratory flow meter, instructional video, brochure, and/or spacer)S8100Holding chamber or spacer for use with an inhaler or nebulizer; without maskS8101Holding chamber or spacer for use with an inhaler or nebulizer; with maskS8110Peak expiratory flow rate (physician services)S8120Oxygen contents, gaseous, 1 unit equals 1 cubic footS8130Interferential current stimulator, 2 channelS8131Interferential current stimulator, 4 channelS8185Flutter deviceS8186Swivel adapterS8189Tracheostomy supply, not otherwise classifiedS8210Mucus trap