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Electrical stimulator supplies, 2 lead, per month, (e.g., tens, nmes)

HCPCS code

Name of the Procedure:

Electrical Stimulator Supplies, 2 Lead, Per Month
Common name(s): TENS (Transcutaneous Electrical Nerve Stimulation), NMES (Neuromuscular Electrical Stimulation)
Technical or medical terms: HCPCS Code A4595


Electrical stimulator units are used to manage pain and stimulate muscles. This procedure involves the supply of necessary electrical stimulator equipment, specifically two leads, provided on a monthly basis for patients using devices like TENS or NMES.


Electrical stimulators like TENS and NMES are used to:

  • Manage chronic and acute pain.
  • Aid muscle rehabilitation and prevent muscle atrophy.
  • Enhance blood circulation.


  • Chronic pain conditions such as arthritis, back pain, and fibromyalgia.
  • Muscle weakness and atrophy due to conditions like stroke or injury.
  • Patients experiencing postoperative pain.
  • Patients who don’t respond well to traditional pain medications.


  • No special preparation is typically needed.
  • Patients might be advised to discuss current medications with their healthcare provider.
  • Ensure the device is in proper working condition.

Procedure Description

  1. Placement of Leads: Two lead wires are placed on the skin at the prescribed areas.
  2. Connection to Device: Leads are connected to the electrical stimulator device.
  3. Adjustment of Settings: The device is turned on, and settings are adjusted based on the prescribed treatment plan.
  4. Session Duration: The stimulator runs for a specific duration as directed by the healthcare provider.

    Tools/Equipment: TENS/NMES device, lead wires, electrodes.
    Anesthesia/Sedation: Not required.


Each session typically lasts between 20 to 60 minutes, depending on the treatment plan.


  • Home setting (Most common)
  • Outpatient clinic or therapy center for guided sessions


  • Primarily self-administered by the patient.
  • Initial setup and instruction usually provided by a healthcare professional (e.g., physician, physical therapist).

Risks and Complications

  • Skin irritation or allergic reaction at the electrode site.
  • Muscle twitching or discomfort if intensity is set too high.
  • Rarely, potential interference with implanted medical devices like pacemakers.


  • Reduction in pain and discomfort often noticed within a few sessions.
  • Improvement in muscle function and strength.
  • Non-invasive, with no need for medication.


  • No specific recovery period as it’s a non-invasive procedure.
  • Instructions may include regular device use and skin care to prevent irritation.
  • Follow-up appointments to monitor progress and adjust treatment as needed.


  • Pain medications (e.g., NSAIDs, opioids).
  • Physical therapy exercises.
  • Surgical interventions in severe cases.
  • Other forms of pain management like acupuncture or chiropractic care.

Patient Experience

  • Patients may feel a tingling or buzzing sensation during stimulation.
  • Initial discomfort as they adjust to the sensation, usually subsides.
  • Pain management and comfort measures typically involve adjusting device settings or electrode placement.

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