T4538 — Diaper service, reusable diaper, each diaper
T4538 is a HCPCS Level II code for diaper service, reusable diaper, each diaper. It belongs to the National Codes for State Medicaid Agencies section. Medicare does not pay it — see the coverage note below before you bill it.
Medicare coverage: Non-covered by Medicare
Medicare does not cover the item or service this code describes.
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 statusN
Non-covered service. Medicare does not cover it.
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 T4538
- Long descriptor
- Diaper service, reusable diaper, each diaper
- Short descriptor
- Diaper serv reusable diaper
- Added
- January 1, 2005
- BETOS
- D1A
- 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 T4538
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If T4538 is not quite right, the correct code is very often within a few positions of it.
- T4530Pediatric sized disposable incontinence product, brief/diaper, large size, each
- T4531Pediatric sized disposable incontinence product, protective underwear/pull-on, small/medium size, each
- T4532Pediatric sized disposable incontinence product, protective underwear/pull-on, large size, each
- T4533Youth sized disposable incontinence product, brief/diaper, each
- T4534Youth sized disposable incontinence product, protective underwear/pull-on, each
- T4535Disposable liner/shield/guard/pad/undergarment, for incontinence, each
- T4536Incontinence product, protective underwear/pull-on, reusable, any size, each
- T4537Incontinence product, protective underpad, reusable, bed size, each
- T4539Incontinence product, diaper/brief, reusable, any size, each
- T4540Incontinence product, protective underpad, reusable, chair size, each
- T4541Incontinence product, disposable underpad, large, each
- T4542Incontinence product, disposable underpad, small size, each
- T4543Adult sized disposable incontinence product, protective brief/diaper, above extra large, each
- T4544Adult sized disposable incontinence product, protective underwear/pull-on, above extra large, each
- T4545Incontinence product, disposable, penile wrap, each
- T5001Positioning seat for persons with special orthopedic needs
Questions about T4538
What is HCPCS code T4538?
T4538 is a HCPCS Level II code for diaper service, reusable diaper, each diaper. It sits in the National Codes for State Medicaid Agencies section.
Does Medicare cover T4538?
The CMS HCPCS file marks T4538 as "Non-covered by Medicare". Medicare does not cover the item or service this code describes.
How is T4538 paid under the physician fee schedule?
T4538 carries PFS status code N. Non-covered service. Medicare does not cover it.