ModifiedBlue Cross Blue Shield of VermontPolicy 1.01.VT09

Transcutaneous Electrical Nerve Stimulation (TENS) and Transcutaneous Afferent Patterned Stimulation (TAPS) Corporate Medical Policy

Customize your policy alerts

Sign up for bcbsvermont Policy 1.01.VT09 alerts

Get alerted when Policy 1.01.VT09 changes without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

This policy governs coverage, medical necessity, prior authorization, coding, and investigational status for TENS, TAPS, related supplies, and conductive garments for eligible members, subject to the member's contract and benefit plan.

Policy Summary

PayerBlue Cross Blue Shield of Vermont

PolicyTranscutaneous Electrical Nerve Stimulation (TENS) and Transcutaneous Afferent Patterned Stimulation (TAPS)

Policy CodePolicy 1.01.VT09

Change TypeModified

Effective DateOct 1, 2025

Last ReviewJun 1, 2025

Next Review DateJun 1, 2026

Key ActionObtain prior authorization for covered TENS supplies, two-lead or multi-lead TENS units, and conductive garments when applicable criteria are met.

SourceLink

POLICY UPDATE CHANGES

The June 2025 revision added TAPS as investigational for essential tremor and intention tremor of Parkinson's disease and for all other indications.

The June 2025 revision added Cefaly migraine-device coding information and added A4541, A4542, E0733, and E0734 to the investigational coding table.

The October 2024 revision added prevention and treatment of migraine headaches as an investigational TENS indication.

OpenPayer is powered by Trek Health's payer performance platform. Trek continuously ingests, validates, and normalizes Transparency in Coverage data alongside payer policies and other commercial payer data to create a structured payer intelligence foundation. OpenPayer uses this foundation to deliver personalized search results, dynamically generated policy pages, and tailored policy monitoring based on each user's payers, specialties, billing codes, and areas of interest. The same intelligence powers broader payer performance workflows, including reimbursement benchmarking, contract evaluation, payer negotiations, and financial decision-making.

ModifiedBlue Cross Blue Shield of VermontPolicy 1.01.VT09

Transcutaneous Electrical Nerve Stimulation (TENS) and Transcutaneous Afferent Patterned Stimulation (TAPS) Corporate Medical Policy

Customize your policy alerts

Sign up for bcbsvermont Policy 1.01.VT09 alerts

Get alerted when Policy 1.01.VT09 changes without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Policy Summary

PayerBlue Cross Blue Shield of Vermont

PolicyTranscutaneous Electrical Nerve Stimulation (TENS) and Transcutaneous Afferent Patterned Stimulation (TAPS)

Policy CodePolicy 1.01.VT09

Change TypeModified

Effective DateOct 1, 2025

Last ReviewJun 1, 2025

Next Review DateJun 1, 2026

Key ActionObtain prior authorization for covered TENS supplies, two-lead or multi-lead TENS units, and conductive garments when applicable criteria are met.

SourceLink

POLICY UPDATE CHANGES

The June 2025 revision added TAPS as investigational for essential tremor and intention tremor of Parkinson's disease and for all other indications.

The June 2025 revision added Cefaly migraine-device coding information and added A4541, A4542, E0733, and E0734 to the investigational coding table.

The October 2024 revision added prevention and treatment of migraine headaches as an investigational TENS indication.

90 daysRequired TENS trial before full purchase consideration

3 monthsMinimum conservative therapy duration for chronic refractory pain

6 activitiesFunctional domains used to document significant disruption of functioning

1 per plan yearMaximum replacement of lost, stolen, or destroyed DME when criteria are met

Prior approvalAuthorization requirement for covered services and listed TENS equipment codes

InvestigationalPolicy stance for TAPS for essential tremor, Parkinson's intention tremor, and all other indications

Coverage Criteria

Postoperative pain

TENS is considered medically necessary for postoperative pain when the postoperative pain criterion and at least one associated condition are met.

Postoperative pain criteria

Underlying condition
- The member has postoperative pain.
At least one associated condition
- Conventional pain-control techniques fail to adequately reduce pain.
- Medication-related adverse events are unacceptable.
- Opioid dosage reduction is needed.

Dysmenorrhea

TENS is considered medically necessary for dysmenorrhea when all of the following criteria are met.

Dysmenorrhea criteria

The member has dysmenorrhea.
There has been no response to treatment with NSAIDs or hormonal therapy, such as oral contraceptives.
Secondary causes of dysmenorrhea, such as endometriosis, have been ruled out.

Chronic refractory musculoskeletal or neuropathic pain

TENS is considered medically necessary for chronic refractory musculoskeletal or neuropathic pain when all of the following criteria are met.

Chronic refractory pain criteria

The pain is unresponsive to at least three months of conservative medical therapy, including nonsteroidal anti-inflammatory medications, ice, rest, and/or physical therapy.At least 3 months
The pain causes significant disruption of function, documented as difficulty with at least two of the six listed functional activities.
The efficacy of TENS has been documented in a provider setting.
Member education on the use of TENS therapy has been documented.

Initial 90-day TENS trial

A 90-day TENS trial may be considered medically necessary when all of the following trial conditions are met.

Initial monitored trial

The trial is monitored by a clinician.90 days
The pain is unresponsive to at least three months of conservative medical therapy, such as NSAIDs, physical therapy, occupational therapy, chiropractic treatment, or stretching.At least 3 months
Trial documentation
- The initial assessment documents the nature, duration, and perceived intensity of pain.
- The types and duration of prior treatments are documented.

Continuation after trial

Continued TENS beyond the initial 90-day trial may be considered medically necessary when a clinical summary of trial efficacy is submitted.

Continuation criteria

The summary documents management of pain causing significant disruption of function, defined as difficulty with at least two of the six listed activities.
The summary documents perceived pain intensity with and without TENS, such as a 2-point or 30% improvement on a visual analog scale.Example: 2-point or 30% VAS improvement
The summary documents ongoing medication requirements for pain relief, if any.
The summary documents other modalities in use for pain control, if any.

Form-fitting conductive garment

A form-fitting conductive garment may replace conventional electrodes for covered TENS treatment when all general requirements and at least one qualifying indication are met.

Conductive garment requirements

The garment has received permission or approval for marketing from the Food and Drug Administration.
A physician has prescribed the garment for use in delivering covered TENS treatment.
At least one qualifying indication
- The area or number of sites and the frequency of stimulation make use of conventional electrodes, adhesive tapes, and lead wires infeasible.
- The sites requiring stimulation for chronic intractable pain are inaccessible using conventional electrodes, adhesive tapes, and lead wires.

Investigational TENS indications

TENS is investigational for the following indications when there is no co-occurring condition that is otherwise medically necessary.

Investigational TENS indication

Dementia.
Depression.
Anxiety.
Cancer or cancer-treatment-related pain.
Dysphagia.
Fibromyalgia.

Investigational TAPS

TAPS is investigational for essential tremor, intention tremor of Parkinson's disease, and all other indications.

Investigational TAPS status

TAPS used for essential tremor is investigational.
TAPS used for intention tremor of Parkinson's disease is investigational.
TAPS used for all other indications is investigational.

Extra over-the-counter batteries for a TENS unit are not covered because they are considered convenience items. Replacement batteries for patient-owned TENS units are also not covered.

Other modalities, including ultrasonic heat treatments and transdermal modalities not explicitly identified in the policy, are considered investigational and are not covered as medically necessary.

Replacement of lost, stolen, or destroyed DME, prosthetic, or orthotic equipment is excluded when the replacement criteria are not met. Coverage is limited to one replacement per plan year; the item must not be covered by an alternative entity, must remain under warranty, and its absence must create a risk of death, disability, hospital admission, or another significant negative health consequence. A stolen-item request must include supporting documentation, such as a police report.

Replacement batteries for patient-owned TENS units are non-covered.

The policy identifies the unlisted physical medicine and rehabilitation service, monthly supplies for E0733, supplies and accessories for E0733, E0733, and E0734 as investigational. Claims for these services, supplies, and equipment are denied as not medically necessary or investigational, as applicable.

TENS is investigational for indications not listed as medically necessary, not medically necessary, or an exclusion. This includes indications outside the policy's specified covered criteria, including the listed investigational uses such as migraine headache prevention or treatment, acute or chronic headache, essential tremor, and Parkinson's action tremor.

TAPS is investigational for essential tremor, intention tremor associated with Parkinson's disease, and all other indications.

The listed unlisted physical medicine and rehabilitation service and HCPCS codes A4541, A4542, E0733, and E0734 are denied as not medically necessary or investigational. HCPCS A4630, replacement batteries for patient-owned TENS units, is non-covered.

Coding and Billing Classification

Codes considered medically necessary when applicable criteria are metHCPCSCovered

A4595	TENS supply 2 lead per month
E0720	TENS unit two lead, localized
E0730	TENS four or more leads
E0731	Conductive garment for delivery of TENS or NMES
E1399	Durable medical equipment; miscellaneous

Codes denied as not medically necessary / investigationalHCPCSExperimental

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
E0733

Not coveredHCPCSNot Covered

A4630

Replacement batteries, TENS units; patient owned

Investigational unlisted physical medicine/rehabilitation serviceCPTExperimental

Unlisted physical medicine/rehabilitation service

Cefaly device codingHCPCS

E1399

Durable medical equipment, miscellaneous; likely reporting code for the Cefaly device

Codes considered medically necessary when applicable criteria have been metHCPCSCovered

A4595	TENS supply 2 lead per month.
E0720	TENS unit two lead, localized.
E0730	TENS four or more leads.
E0731	Conductive garment for delivery of TENS or NMES.
E1399	Durable medical equipment; miscellaneous

Codes denied as not medically necessary or investigationalmixedExperimental

Unlisted CPT code	Unlisted physical medicine/ rehabilitation service or
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
E0733	Transcutaneous electrical nerve stimulator for electrical stimulation of the
E0734	External upper limb tremor stimulator of the peripheral nerves of the wrist.

Non-covered codesHCPCSNot Covered

A4630

Replacement batteries TENS units; patient owned.

Conservative therapy duration

Minimum durationAt least 3 months of unsuccessful conservative medical therapy is required before TENS is considered for chronic refractory pain.

Examples of therapyConservative therapy may include NSAIDs, ice, rest, physical therapy, occupational therapy, chiropractic treatment, or stretching.

Additional requirementThe pain must be unresponsive to the therapy, and significant disruption of function must be documented.

TENS trial

Initial trial

Provider and Authorization Requirements

Prior Authorization

Prior Approval Required for Covered TENS Equipment

Prior approval is required for covered TENS equipment and related supplies. Benefits remain subject to the member’s contract, applicable limitations, and medical-necessity criteria; incomplete requests may be delayed while missing information is obtained.

Covered TENS equipment includes supplies, two-lead and multi-lead units, and conductive garments.
Verify benefits and submit complete clinical documentation before dispensing or providing equipment.

Prior Authorization

Miscellaneous TENS Equipment Review

Miscellaneous durable medical equipment coded E1399 requires review before coverage can be determined. Submit the equipment description, intended use, and supporting medical-necessity documentation; the request may be suspended for Medical Review.

E1399: Durable medical equipment, miscellaneous.
Cefaly and other miscellaneous TENS equipment are subject to review and are not automatically covered.

Technology Background

Transcutaneous electrical nerve stimulation (TENS) applies electrical stimulation to the skin at the site of pain through a battery-operated pulse generator connected to electrodes. Transcutaneous afferent patterned stimulation (TAPS) uses a wearable, battery-operated device to deliver alternating, time-locked patterned electrical pulses over peripheral nerves, typically at the wrist. TAPS is described primarily for movement-disorder symptoms such as essential tremor, but the policy considers TAPS investigational for all listed indications.

Key Definitions

Transcutaneous electrical nerve stimulation (TENS)

Stimulation siteTENS applies electrical stimulation to the surface of the skin at the site of pain.

Power sourceTENS generally uses a battery-operated electrical pulse generator.

ElectrodesThe pulse generator is connected by wire to two or more electrodes placed on the skin.

Transcutaneous afferent patterned stimulation (TAPS)

Stimulation methodTAPS applies patterned electrical stimulation to the skin over peripheral nerves, typically at the wrist.

DeviceTAPS uses a wearable, battery-operated device to deliver sequences of electrical pulses to targeted nerve sites such as the median and radial nerves.

Medical Necessity for Equipment

TENS equipment

TENS equipment is medically necessary only when the underlying indication and all applicable trial, documentation, and authorization requirements are satisfied.

Equipment medical necessity

The requested equipment supports a TENS indication that meets the applicable medical-necessity criteria.
Required conservative therapy and, when applicable, the clinician-monitored 90-day TENS trial have been completed.90 days / 3 months
Required documentation is submitted, including the applicable pain assessment, prior-treatment history, treatment plan, clinician monitoring, member education, and documented efficacy.
Prior approval is obtained for applicable TENS supplies, two-lead localized TENS units, TENS units with four or more leads, conductive garments, and miscellaneous TENS equipment when required.

Rental and Purchase Rules

Equipment	Rental or purchase classification	Applicable rule
TENS unit	Capped rental	A three-month (90-day) trial is required before full purchase will be considered.

Replacement of Lost, Stolen, or Destroyed Equipment

Lost, stolen, or destroyed DME, prosthetic, or orthotic

Replacement limitThe plan will replace 1 lost, stolen, or destroyed DME, prosthetic, or orthotic per Plan Year.

Eligibility conditionsThe item must not be covered by an alternative entity and must still be under warranty.

Required health-risk conditionThe item’s absence must put the member at risk of death, disability, hospital admission, or another significant negative health consequence.

Required Documentation

Documentation Required

Maintain complete TENS-use documentation

Document the initial pain assessment, prior treatments and their duration, treatment plan, medication use, TENS frequency and duration, clinician monitoring, and efficacy during the trial for initial and continued TENS use.

Record pain nature, duration, and perceived intensity.
Document ongoing medications and proposed or actual TENS frequency and duration.
For continuation, include pain with and without TENS and other pain-control modalities.

Documentation Required

Document conductive-garment necessity

For a conductive garment, document FDA marketing permission or approval, a physician prescription, and a qualifying reason conventional electrodes, adhesive tape, and lead wires cannot be used.

Qualifying reasons include infeasible large or frequent stimulation, inaccessible sites, skin problems, stimulation beneath a cast, or rehabilitation strengthening under a written rehabilitation plan.

Not Covered Services and Equipment

The policy does not cover extra over-the-counter TENS batteries or replacement batteries for patient-owned TENS units. TAPS equipment and services are investigational for essential tremor, Parkinson's intention tremor, and all other indications. Listed investigational items include the unlisted physical medicine and rehabilitation service, A4541, A4542, E0733, and E0734; A4630 is specifically identified as non-covered. Replacement of lost, stolen, or destroyed DME is also not covered when the applicable criteria are not met or when more than one item per plan year is requested.

Policy Summary

PayerBlue Cross Blue Shield of Vermont

PolicyTranscutaneous Electrical Nerve Stimulation (TENS) and Transcutaneous Afferent Patterned Stimulation (TAPS)

Policy CodePolicy 1.01.VT09

Change TypeModified

Effective DateOct 1, 2025

Last ReviewJun 1, 2025

Next Review DateJun 1, 2026

Key ActionObtain prior authorization for covered TENS supplies, two-lead or multi-lead TENS units, and conductive garments when applicable criteria are met.

SourceLink

On This Page

The treatment plan addresses ongoing medications and the proposed use of the TENS unit, including treatment frequency and duration.

The summary documents actual daily TENS use, including frequency and duration of application.

A documented medical condition, such as skin problems, precludes application of conventional electrodes, adhesive tapes, and lead wires.

Electrical stimulation is required beneath a cast to treat disuse atrophy with intact nerve supply or chronic intractable pain.

Electrical stimulation is medically needed for rehabilitation strengthening under a written rehabilitation plan following an injury with intact nerve supply.

Prevention or treatment of migraine headaches.

Rheumatoid arthritis.

Scleroderma and gastrointestinal symptoms.

Slow-transit constipation in children.

Stroke-related motor dysfunction.

Stress incontinence after prostatectomy.

Urge incontinence in children.

Neurogenic incontinence.

Enuresis in children.

Lichen simplex pruritus.

Acute or chronic headaches, including use of Cefaly technology.

Chronic deep abdominal pain.

Chronic pelvic pain syndrome.

Temporomandibular joint pain.

Sympathetic therapy, including use of the Dynatron STS or Dynatron STS Rx device.

Cranial electrical stimulation, transcranial electrical stimulation, or electrical stimulation therapy, such as Alpha-Stim.

Electrical stimulation of auricular acupuncture points.

Pain during labor and delivery.

Action tremor of Parkinson's disease.

Attention deficit hyperactivity disorder (ADHD).

Any other indication not listed as medically necessary, not medically necessary, or an exclusion.

A clinician-monitored TENS trial must last 90 days.

Equivalent periodThe 90-day trial is equivalent to 3 months.

Purchase considerationA three-month trial is required before full purchase of the TENS unit will be considered.

Functional disruption

ThresholdSignificant disruption of functioning requires difficulty with at least 2 of 6 listed activities.

Daily activitiesThe activities include eating, dressing, bathing or using the toilet; sleeping; and walking one block.

Work and well-beingThe activities also include working, attending school or performing household tasks; limiting social activities; or depression and/or anxiety requiring treatment.

Pain improvement example

Pain measurePain intensity is best illustrated using the Visual Analogue Scale or Quadruple VAS.

Example improvementAn example of qualifying improvement is a 2-point improvement on the visual analog scale.

Alternative thresholdA 30% improvement on the visual analog scale is another example cited by the policy.

Lost, stolen, or destroyed DME replacement

Annual limitNo more than 1 lost, stolen, or destroyed DME item may be replaced per Plan Year.

Alternative coverageReplacement is allowed only if the item is not covered by an alternative entity, including homeowners or automobile insurance.

Health-risk conditionThe equipment’s absence must put the member at risk of death, disability, hospital admission, or another significant negative health consequence.

Prior Authorization

Prior Authorization Required for TENS Supplies

Prior authorization is required for TENS supplies billed as A4595 when applicable coverage criteria are met.

A4595: TENS supply, two leads per month.

Prior Authorization

Prior Authorization Required for Two-Lead TENS Unit

Obtain prior authorization for a localized two-lead TENS unit when the applicable medical-necessity criteria are satisfied.

E0720: TENS unit, two lead, localized.

Prior Authorization

Prior Authorization Required for Multi-Lead TENS Unit

Obtain prior authorization for a TENS unit with four or more leads when the applicable medical-necessity criteria are satisfied.

E0730: TENS unit, four or more leads.

Prior Authorization

Prior Authorization Required for Conductive Garment

A conductive garment used to deliver covered TENS or NMES requires prior authorization and must meet the policy’s FDA, prescription, and clinical-need requirements.

E0731: Conductive garment for delivery of TENS or NMES.
The garment must have FDA marketing authorization, be prescribed by a physician, and be needed because conventional electrodes, adhesive tapes, and lead wires cannot be used effectively.

Step Therapy

Conservative Therapy and 90-Day Trial Required

A three-month course of conservative therapy is required before a full TENS purchase may be considered. A 90-day trial may be considered when monitored by a clinician and when pain remains unresponsive to at least three months of conservative treatment.

Conservative therapy may include NSAIDs, ice, rest, physical therapy, occupational therapy, chiropractic care, or stretching.
The trial must be clinician-monitored before continued use or purchase is considered.

Unsupported block type: documentation the callout

Unsupported block type: documentation

Documentation Required

Conductive Garment Documentation

A form-fitting conductive garment may replace conventional electrodes only when the garment has FDA marketing authorization, is prescribed by a physician for covered TENS treatment, and a qualifying clinical reason makes conventional electrodes, adhesive tapes, and lead wires impractical or unsuitable.

Qualifying reasons include a large or frequently stimulated area, inaccessible stimulation sites, skin conditions preventing electrode use, electrical stimulation beneath a cast, or rehabilitation strengthening under a written rehabilitation plan.
The underlying indication must otherwise qualify for covered TENS or NMES treatment.

Documentation Required

Lost, Stolen, or Destroyed Equipment Documentation

For replacement of lost, stolen, or destroyed durable medical equipment, submit documentation supporting the replacement request. A stolen item requires documentation such as a police report.

Only one lost, stolen, or destroyed DME, prosthetic, or orthotic may be replaced per Plan Year.
The item must not be covered by an alternative entity, its absence must pose a risk of death, disability, hospitalization, or other significant negative health consequence, and it must still be under warranty.

Denial Risk

Insufficient Medical Necessity or Nonqualifying Indication

TENS is not medically necessary when the requested indication does not meet the policy’s covered criteria or when required documentation is insufficient. Requests for chronic pain must establish refractory pain, conservative-therapy failure, functional impact, and the required monitored trial or continuation evidence.

TENS is investigational for indications not listed as medically necessary, not medically necessary, or an exclusion.
Do not approve requests lacking the required clinical documentation or submitted for a nonqualifying indication.

Denial Risk

Extra Over-the-Counter Batteries Excluded

Extra batteries that can be purchased over the counter for a TENS unit are excluded as convenience items and are not covered.

Do not bill or request coverage for additional over-the-counter TENS-unit batteries.

Denial Risk

Replacement Criteria Must Be Met

Replacement of lost, stolen, or destroyed DME is excluded when the replacement criteria are not met or when more than one item is requested in the same Plan Year.

The exclusion applies when the equipment is not under warranty, the required health-risk criteria are absent, an alternative payer is responsible, or the one-item-per-Plan-Year limit has been exceeded.

Billing Rule

Verify Benefit-Plan Limitations

Coverage and prior-approval requirements are subject to the member’s contract, employer benefit plan, and applicable program-specific rules. Contract or plan language takes precedence over the medical policy when there is a conflict.

NEHP/ABNE and Federal Employee Program members may have different benefits.
Benefits may vary or not apply for Administrative Services Only groups; verify benefits before providing the service.

Denial Risk

Investigational Services and Equipment

The following TENS, TAPS, and related services or equipment are investigational or otherwise not covered for the listed uses unless a covered indication and applicable criteria are present: unlisted physical medicine/rehabilitation services; supplies and accessories for E0733; monthly supplies for E0733; external upper-limb tremor-stimulator supplies; TAPS for essential or intention tremor; and other modalities not explicitly covered.

Investigational indications include, among others, dementia, depression, anxiety, cancer-related pain, dysphagia, fibromyalgia, MS-associated pain, migraine or other headaches including Cefaly, phantom limb pain, rheumatoid arthritis, scleroderma or GI symptoms, constipation, stroke-related motor dysfunction, incontinence, tinnitus, TMJ pain, chronic abdominal or pelvic pain, labor and delivery pain, essential or Parkinson’s tremor, ADHD, sympathetic or cranial electrical stimulation, and auricular acupuncture stimulation.
A4541: Monthly supplies for a device coded E0733 — investigational.
A4542: Supplies and accessories for an external upper-limb tremor stimulator — investigational.
Unlisted physical medicine/rehabilitation service — investigational.

Denial Risk

Patient-Owned TENS-Unit Batteries Not Covered

Batteries for a patient-owned TENS unit are non-covered replacement items.

A4630: Replacement batteries for TENS units; patient owned — non-covered.

Pattern and purposeThe pulses are delivered in a time-locked, alternating pattern designed to modulate abnormal neural activity in the central nervous system.

Refractory chronic pain

Core definitionRefractory chronic pain is pain that causes significant disruption of function and has not responded to at least 3 months of conservative therapy.

Therapy examplesConservative therapy includes nonsteroidal anti-inflammatory medications, ice, rest, and/or physical therapy.

Functional impactThe pain must cause significant disruption of function as documented under the policy’s qualifying activities.

Significant disruption of functioning

Required thresholdSignificant disruption of functioning means difficulty with at least 2 of 6 listed activities.

Personal and physical activitiesQualifying activities include eating, dressing, bathing or using the toilet; sleeping; and walking one block.

Work, social, and emotional activitiesQualifying activities also include working, attending school or performing household tasks; limiting social activities; or depression and/or anxiety requiring treatment.

Documentation Required

Submit replacement-supporting documentation

For stolen equipment, provide documentation such as a police report. Replacement also requires that the item is under warranty, not covered by another entity, its absence creates the specified serious health risk, and no more than one item is requested per plan year.

Alternative entities include homeowners insurance and automobile insurance.
The health risk may include death, disability, hospital admission, or another significant negative health consequence.