S8421 — Gradient pressure aid (sleeve and glove combination), ready made
S8421 is a HCPCS Level II code for gradient pressure aid (sleeve and glove combination), ready made. It belongs to the Temporary National Codes (Non-Medicare) section. Medicare does not pay it — see the coverage note below before you bill it.
Medicare coverage: Not payable by Medicare
Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusI
Not valid for Medicare purposes. Medicare uses another code.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for S8421
- Long descriptor
- Gradient pressure aid (sleeve and glove combination), ready made
- Short descriptor
- Ready gradient sleev/glov
- Added
- January 1, 2002
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to S8421
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If S8421 is not quite right, the correct code is very often within a few positions of it.
- S8189Tracheostomy supply, not otherwise classified
- S8210Mucus trap
- S8262Mandibular orthopedic repositioning device, eachterminated
- S8265Haberman feeder for cleft lip/palate
- S8270Enuresis alarm, using auditory buzzer and/or vibration device
- S8301Infection control supplies, not otherwise specified
- S8415Supplies for home delivery of infant
- S8420Gradient pressure aid (sleeve and glove combination), custom made
- S8422Gradient pressure aid (sleeve), custom made, medium weight
- S8423Gradient pressure aid (sleeve), custom made, heavy weight
- S8424Gradient pressure aid (sleeve), ready made
- S8425Gradient pressure aid (glove), custom made, medium weight
- S8426Gradient pressure aid (glove), custom made, heavy weight
- S8427Gradient pressure aid (glove), ready made
- S8428Gradient pressure aid (gauntlet), ready made
- S8429Gradient pressure exterior wrap
Questions about S8421
What is HCPCS code S8421?
S8421 is a HCPCS Level II code for gradient pressure aid (sleeve and glove combination), ready made. It sits in the Temporary National Codes (Non-Medicare) section.
Does Medicare cover S8421?
The CMS HCPCS file marks S8421 as "Not payable by Medicare". Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
How is S8421 paid under the physician fee schedule?
S8421 carries PFS status code I. Not valid for Medicare purposes. Medicare uses another code.