CurrentCentenePolicy CP MP.48

Clinical Policy: Neuromuscular and Peroneal Nerve Electrical Stimulation (NMES)

Defines medical necessity criteria for neuromuscular electrical stimulation (NMES), functional electrical stimulation (FES), and peroneal nerve stimulators for members/enrollees under Centene-affiliated health plans, including eligible indications, contraindications, device-specific coverage, and HCPCS coding guidance.

Policy Summary

PayerCentene

PolicyClinical Policy: Neuromuscular and Peroneal Nerve Electrical Stimulation (NMES)

Policy CodePolicy CP MP.48

Change TypeAnnual reviews; criteria revisions; added peroneal stimulator sections

Effective Date

Next Review Date

Key ActionProviders must document that nerve supply to the atrophied muscle is intact and record the specific atrophy indication.

POLICY UPDATE CHANGES

Annual review. Updated language in Criteria I.A. for clarity; coding and descriptions reviewed; references updated.

Removed certain contraindications under ILF in 06/24 annual review; background updated with no impact on criteria.

Combined criteria applicable to lower extremity units into section II.G and added contraindications to Section F in prior annual reviews.

Added section III and IV criteria specifying peroneal nerve stimulators medically necessary for incomplete SCI and not proven for other indications.

3Main covered device categories (NMES, FES, Peroneal stimulators)

1HCPCS codes explicitly not supporting coverage

5Listed absolute contraindications (examples)

Coverage Summary

Scope: This policy (Policy Number CP MP.48) defines medical necessity criteria for neuromuscular electrical stimulation (NMES), functional electrical stimulation (FES), and peroneal nerve stimulators for members/enrollees under Centene-affiliated health plans (payer: Centene). The policy status is CURRENT with last review/effective activity noted on 2025-05-25 (last_review: 2025-05-25).

Overview: The policy stance is mixed — NMES, FES, and peroneal stimulators are covered for specific indications with defined criteria and exclusions. Quick facts: 3 main covered device categories (NMES, FES, Peroneal stimulators), 1 HCPCS code explicitly not supporting coverage (E0744), and example absolute contraindications listed (about 5 examples).

Surface thresholds

FES training program sessions>= 32 physical therapy sessions over a 3-month period

Post-SCI waiting period>= 6 months since recovery from spinal cord injury and restorative surgery

Independent standing tolerance for LE FES>= 3 minutes

Medical Necessity Criteria

NMES - Medical Necessity for Disuse Atrophy

NMES is medically necessary when used as one component of a comprehensive rehabilitation program for treatment of disuse atrophy when the nerve supply to the atrophied muscle is intact and ALL of the following apply:

ALL of the following

AND has any of the following atrophy indications
- Nerve supply to the atrophied muscle is intact
- Contractures due to scarring of soft tissue burn lesions
- Previous casting or splinting of a limb
- Major knee surgery with failure to respond to physical therapy

Coding

HCPCS codes that support coverage criteria / referencedHCPCSCovered

E0745	Neuromuscular stimulator, electronic shock unit
E0764	Functional neuromuscular stimulation, transcutaneous stimulation of sequential muscle groups of ambulation with computer control, used for walking by spinal cord injured, entire system, after completion of training program
E0770	Functional electrical stimulator; transcutaneous stimulation of nerve and/or muscle groups, any type, complete system, not otherwise specified

HCPCS codes that do not support coverage criteriaHCPCSNot Covered

E0744

Neuromuscular stimulator for scoliosis

Provider Actions

Documentation Required

Document intact nerve supply and indication for NMES

Providers must document that the nerve supply to the atrophied muscle is intact and record the specific atrophy indication. Examples of acceptable documented indications include contractures due to scarring from burns, prior casting or splinting of a limb, failure to respond to physical therapy after major knee surgery, and recent hip replacement when NMES will be used until physical therapy begins.

Document intact nerve supply to the atrophied muscle
Record specific atrophy indication (e.g., burn-related contracture, prior casting/splinting, failed PT after major knee surgery, recent hip replacement until PT begins)

Documentation Required

Document FES candidacy and training completion

For FES in spinal cord injury (SCI), providers must document candidacy and training completion. Required documentation includes evidence of brisk muscle contraction to stimulation with sensory perception sufficient for contraction, that at least six months have passed since recovery from the SCI and any restorative surgery, the member's motivation/cognitive ability and willingness to use the device long-term, and completion of a training program of at least 32 physical therapy sessions with the device over a three-month period. Reference the applicable HCPCS codes when submitting claims.

Background and Evidence

Background and definitions: NMES is defined as a device that transmits an electrical impulse to the skin over selected muscle groups to treat atrophy or elicit contractions (NMES). NMES devices include those that stimulate muscles at rest to treat disuse atrophy and can be applied at low, medium, or high intensity; patients are encouraged to voluntarily exercise the affected muscles in conjunction with NMES.

FES is defined as electrical stimulation used to activate muscles to produce functional movement patterns such as standing and walking (FES). FES is typically used to enhance functional activity in neurologically impaired patients (for example, producing walking in paraplegia) but is generally unsuitable for lower motor neuron lesions.

Clinical uses and limitations: NMES is used primarily for treatment of disuse atrophy when the nerve supply to the muscle is intact and specific atrophy indications are present (e.g., contractures from burns, prior casting/splinting, failed PT after major knee surgery, temporary use after recent hip replacement). FES is used to produce or support functional movements (standing/walking) in patients with upper motor neuron lesions such as SCI when defined candidacy criteria and training requirements are met.

Service setting and therapist skill notes: Skilled therapists in one-on-one training programs are required to provide both NMES and FES services; the only settings identified where such skilled therapists can provide these services are inpatient hospitals, outpatient hospitals, comprehensive outpatient rehabilitation facilities, and outpatient rehabilitation facilities.

Evidence references

Policy-specific notes

Medicare Determinations

Name	Number	Type
Neuromuscular electrical stimulation (NMES)	160.12	NCD

Revision History

05/25revision

Annual review. Updated language in Criteria I.A. for clarity; coding and descriptions reviewed; references updated.

06/24revision

Annual review. Removed contraindications under ILF (including uncontrolled cardiac arrhythmias, unstable angina, joint replacement in a location targeted by FES and seizure disorder); background updated with no impact on criteria; references reviewed and updated.

07/21-07/23revision

Annual review completed. Integrated NMES, FES, and peroneal stimulator criteria from legacy policies; combined criteria applicable to lower extremity units into section II.G and added additional contraindications to Section F; minor rewording and background updates with no impact to criteria.

Policy Summary

PayerCentene

PolicyClinical Policy: Neuromuscular and Peroneal Nerve Electrical Stimulation (NMES)

Policy CodePolicy CP MP.48

Change TypeAnnual reviews; criteria revisions; added peroneal stimulator sections

Effective Date

Next Review Date

Key ActionProviders must document that nerve supply to the atrophied muscle is intact and record the specific atrophy indication.

On This Page

Recent hip replacement and NMES will be used until physical therapy begins

FES - Medical Necessity for Spinal Cord Injury (SCI)

FES is medically necessary for SCI when ALL of the following criteria are met:

ALL of the following

Member/enrollee has brisk muscle contraction to stimulation and sensory perception of electrical stimulation sufficient for muscle contraction
At least six months have passed since recovery from spinal cord injury and restorative surgery>= 6 months
Member/enrollee is highly motivated, committed, and has the cognitive ability to use FES devices for walking
Member/enrollee demonstrates a willingness to use the device long-term
Successful completion of a training program consisting of at least 32 physical therapy sessions with the device over a three-month period>= 32 sessions / 3 months
No contraindications present (none of the following)
- Cardiac pacemaker
- Severe scoliosis or severe osteoporosis
- Skin disease or cancer at area of stimulation
- Irreversible contracture
- Autonomic dysreflexia
If lower extremity FES is requested, ALL of the following must be met
- Intact lower motor units (L1 and below, including both muscle and peripheral nerve)
- Muscle and joint stability adequate for weight bearing at upper and lower extremities and can demonstrate balance and control to maintain an upright support posture independently
- Transfers independently and demonstrates independent standing tolerance for at least three minutes>= 3 minutes
- Demonstrates hand and finger function to manipulate controls
- No hip and knee degenerative disease and no history of long bone fracture secondary to osteoporosis

Peroneal Nerve Stimulators (e.g., NESS L300, WalkAide)

Peroneal nerve stimulators are medically necessary only for incomplete spinal cord injury. They have not been proven safe and effective for other indications.

ALL of the following

Indication: Incomplete spinal cord injury (covered)

Not proven safe/effective for other indications

Foot drop in cerebral palsy
Multiple sclerosis
Traumatic brain injury
Stroke
Any other indication (e.g., idiopathic scoliosis, heart failure) - NMES for these indications is not proven safe and effective

Relevant HCPCS codes: E0764, E0770
Brisk muscle contraction to stimulation and sensory perception sufficient for contraction
>= 6 months since recovery from SCI and restorative surgery
Member highly motivated, cognitively able, and willing to use device long-term
Successful completion of >= 32 PT sessions with the device over a 3-month period (training completion)

Prior Authorization

Peroneal nerve stimulator indication

Peroneal nerve stimulators are considered medically necessary only for incomplete spinal cord injury. Prior authorization should confirm the indication (incomplete SCI) and that proposed device use matches the policy criteria before approval. When requesting prior authorization, reference the applicable HCPCS codes for peroneal/FES systems.

Affected HCPCS codes: E0764, E0770
Prior authorization should confirm indication = incomplete spinal cord injury and match to policy criteria

Denial Risk

Exclusions/Not Proven Indications

Claims for peroneal nerve stimulators or NMES for indications other than incomplete spinal cord injury (or other policy-supported indications) may be denied as not proven safe and effective. Peroneal stimulators and NMES are not proven for conditions such as cerebral palsy, multiple sclerosis, traumatic brain injury, or stroke. Also note that HCPCS code E0744 (neuromuscular stimulator for scoliosis) does not support coverage criteria.

Examples of non-covered / not proven indications: cerebral palsy, multiple sclerosis, traumatic brain injury, stroke
Non-supporting HCPCS code: E0744 (neuromuscular stimulator for scoliosis)

07/21material_changeLatest

Added sections III and IV specifying peroneal nerve stimulators medically necessary for incomplete spinal cord injury and not proven for other indications; added HCPCS code E0744 to codes that do not support coverage criteria.