A4542 – Supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wrist
HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental
HCPCS codeA4542
- Long description
- Supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wrist
- Short description
- Supp ext up limb tremor stim
- Pricing indicator
34DME supplies- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
D1EOther DME- Added
- January 1, 2024
- Last change
- January 1, 2024 – No change
Frequently asked questions
What is HCPCS code A4542?
A4542 is a HCPCS Level II code for supplies and accessories for external upper limb tremor stimulator of the peripheral nerves of the wrist.
Does Medicare cover A4542?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby A codes
- 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
- A4540 – Distal transcutaneous electrical nerve stimulator, stimulates peripheral nerves of the upper arm
- A4541 – Monthly supplies for use of device coded at e0733
- 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
- A4555 – Electrode/transducer for use with electrical stimulation device used for cancer treatment, replacement only
- A4556 – Electrodes, (e.g., apnea monitor), per pair
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.