A4555: Electrode/transducer for use with electrical stimulation device used for cancer treatment, replacement only
A4555 is a HCPCS Level II code for electrode/transducer for use with electrical stimulation device used for cancer treatment, replacement only. It belongs to the Transportation, Medical & Surgical Supplies, Administrative 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 2026Q4-Oct. 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.
Medically Unlikely Edits: units per day
The most units of A4555 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 0, never payable MAI 3: Date of Service Edit: Clinical · CMS Policy
- outpatient
- 0, never payable MAI 3: Date of Service Edit: Clinical · CMS Policy
- DME supplier
- 0, never payable MAI 3: Date of Service Edit: Clinical · Published Contractor Policy
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute, no documentation overrides it. CMS MUE 2026Q4.
The CMS record for A4555
- Long descriptor
- Electrode/transducer for use with electrical stimulation device used for cancer treatment, replacement only
- Short descriptor
- Ca tx e-stim electr/transduc
- Added
- January 1, 2014
- BETOS
- D1E
- 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 A4555
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If A4555 is not quite right, the correct code is very often within a few positions of it.
- A4541Monthly supplies for use of device coded at e0733
- A4542Supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wrist
- A4543Supplies for transcutaneous electrical nerve stimulator, for nerves in the auricular region, per month
- A4544Electrode for external lower extremity nerve stimulator for restless legs syndrome
- A4545Supplies and accessories for external tibial nerve stimulator (e.g., socks, gel pads, electrodes, etc.), needed for one month
- A4550Surgical trays
- A4553Non-disposable underpads, all sizes
- A4554Disposable underpads, all sizes
- A4556Electrodes, (e.g., apnea monitor), per pair
- A4557Lead wires, (e.g., apnea monitor), per pair
- A4558Conductive gel or paste, for use with electrical device (e.g., tens, nmes), per oz
- A4559Coupling gel or paste, for use with ultrasound device, per oz
- A4560Neuromuscular electrical stimulator (nmes), disposable, replacement only
- A4561Pessary, reusable, rubber, any type
- A4562Pessary, reusable, non rubber, any type
- A4563Rectal control system for vaginal insertion, for long term use, includes pump and all supplies and accessories, any type each