A4540 – Distal transcutaneous electrical nerve stimulator, stimulates peripheral nerves of the upper arm
HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental
HCPCS codeA4540
- Long description
- Distal transcutaneous electrical nerve stimulator, stimulates peripheral nerves of the upper arm
- Short description
- Trans elec nerv periph nerv
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
SNon-covered by Medicare statute- BETOS category
Z2Undefined codes- Added
- January 1, 2024
- Last change
- January 1, 2024 – No change
Frequently asked questions
What is HCPCS code A4540?
A4540 is a HCPCS Level II code for distal transcutaneous electrical nerve stimulator, stimulates peripheral nerves of the upper arm.
Does Medicare cover A4540?
The HCPCS file lists coverage code S: Non-covered by Medicare statute. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby A codes
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- A4481 – Tracheostoma filter, any type, any size, each
- A4483 – Moisture exchanger, disposable, for use with invasive mechanical ventilation
- A4490 – Surgical stockings above knee length, each
- A4495 – Surgical stockings thigh length, each
- A4500 – Surgical stockings below knee length, each
- A4510 – Surgical stockings full length, each
- A4520 – Incontinence garment, any type, (e.g., brief, diaper), each
- A4541 – Monthly supplies for use of device coded at e0733
- A4542 – Supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wrist
- A4543 – Supplies for transcutaneous electrical nerve stimulator, for nerves in the auricular region, per month
- A4544 – Electrode for external lower extremity nerve stimulator for restless legs syndrome
- A4545 – Supplies and accessories for external tibial nerve stimulator (e.g., socks, gel pads, electrodes, etc.), needed for one month
- A4550 – Surgical trays
- A4553 – Non-disposable underpads, all sizes
- A4554 – Disposable underpads, all sizes
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.