CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Powered Lower‑Limb Exoskeletons for Ambulation — Coverage Criteria

This policy governs coverage for powered exoskeleton devices intended to enable ambulation in individuals with lower-limb disabilities (e.g., spinal cord injury, stroke) for Blue Cross Blue Shield - Rhode Island members.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyPowered Lower‑Limb Exoskeletons for Ambulation — Coverage Criteria

Policy CodePolicy N/A

Change TypeNo material changes

Effective DateJan 11, 2024

Next Review DateMar 7, 2024

Key ActionVerify member-specific benefits and eligibility with the provider call center before providing services.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

Not coveredCoverage stance

K1007, E0739Not covered codes

LimitedEvidence

SeveralDevices discussed

Coverage Criteria

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General coverage determination

Policy coverage determination

Overall coverage stance: Use of a powered exoskeleton for ambulation in individuals with lower-limb disabilities is not covered / considered not medically necessary because evidence is insufficient to determine effects on health outcomes.

Includes commercial products and Medicare Advantage context; evidence limited to small studies, heterogeneous outcomes, and insufficient high-quality data for community or home use.

Coding

Not covered / Not medically necessary codesHCPCSNot Covered

K1007	Bilateral knee, ankle, foot device, powered, includes component; single or double upright(s), knee joints any type, with or without ankle joints any type, includes all components and accessories, motors, microprocessors, sensors hip, pelvic
E0739	Rehabilitation with interactive interface providing active assistance in rehabilitation therapy, includes sensors (New code effective 4/01/2024, Text revised effective 10/1/2024) system

Provider Actions and Billing Guidance

Denial Risk

Not covered billing codes

The following HCPCS codes are not covered or are considered not medically necessary as indicated. Claims submitted with these codes may be denied and may result in provider or member financial responsibility.

K1007 — Bilateral knee, ankle, foot device, powered, includes component; single or double upright(s), knee joints any type, with or without ankle joints any type, includes all components and accessories, motors, microprocessors, sensors (Not covered for Medicare Advantage; Not medically necessary for Commercial Products)
E0739 — Rehabilitation with interactive interface providing active assistance in rehabilitation therapy, includes sensors (New code effective 4/01/2024, Text revised effective 10/1/2024) (Not covered for Medicare Advantage; Not medically necessary for Commercial Products)

Note

Verify member contract and benefit verification

Benefits and eligibility vary by contract. Refer to the member's Benefit Booklet, Evidence of Coverage, or Subscriber Agreement for coverage details. For member-specific benefits and eligibility verification, contact the provider call center. If services are determined to be not medically necessary or non-covered, the provider may not charge the member unless the member was informed in advance and agreed in writing.

Verify member contract and benefits prior to rendering services.
Contact the provider call center for eligibility and benefits verification for the specific member.

Background

Powered exoskeletons are external, wearable, motorized orthoses designed to enable standing and overground ambulation in people with lower-limb weakness or paralysis. These devices typically supply powered assistance to lower-limb joints using motors, sensors, and control algorithms, and often require use of assistive devices (crutches or a walker) and extensive supervised training. Published evidence is limited to small studies, a systematic review, and a few randomized trials, and does not demonstrate sufficient improvement in net health outcomes for community or home use.

Definitions

inv-14: Powered exoskeleton — definition and characteristics

TermPowered exoskeleton

DefinitionAn external, wearable, powered framework (motorized orthosis) that supplies energy for lower‑limb movement to enable standing and ambulation; often includes sensors and control algorithms to detect posture and initiate steps (e.g., ReWalk).

Key characteristicsWorn by the user, contains a power source and motors, includes sensors and proprietary algorithms, may require forearm crutches or a walker and training for use.

Typical candidate constraints (FDA/Fabricator descriptions)Requirements may include adequate upper‑extremity strength to use assistive devices, healthy bone density, ability to stand with assistance, height and weight limits (example: ReWalk height 160–190 cm, weight ≤100 kg).

Intended use examplesDesigned to enable ambulation for individuals with lower‑limb weakness or paralysis (eg, spinal cord injury); some devices are indicated for supervised use in rehabilitation institutions or with a trained companion.

inv-15: References — Powered exoskeleton-related clinical literature (reference list index)

Selected clinical referencesTsai CY et al. Pilot study: Exoskeletal‑Assisted Walking During Acute Inpatient Rehabilitation—Arch Phys Med Rehabil. Apr 2020;101(4):607–612. (PMID 31891715)

Selected clinical referencesGuanziroli E et al. Assistive powered exoskeleton for complete spinal cord injury—Eur Phys Rehabil Med. Apr 2019;55(2):209–216. (PMID 30156088)

Selected clinical referencesSH et al. Exoskeleton‑assisted training randomized study—Pilot Feasibility Stud. 2018;4:62. (PMID 29556414)

Selected clinical referencesGagnon DH et al. Locomotor training using an overground robotic exoskeleton in long‑term manual wheelchair users—J Neuroeng Rehabil. Mar 2018;15(1):12. (PMID 29490678)

Selected clinical referencesKarelis AD et al. Effect on body composition and bone mineral density of walking with a robotic exoskeleton—J Rehabil Med. Jan 2017;49(1):84–87. (PMID 27973679)

Selected clinical referencesEvans N et al. Acute cardiorespiratory and metabolic responses to exoskeleton‑assisted overground walking—Spinal Cord Inj Rehabil. 2015;21(2):122–132. (PMID 26364281)

Medical Necessity

FDA intended use characteristics

FDA-cleared intended populations and candidate characteristics (regulatory intended use — not coverage criteria):

Regulatory candidate characteristics: FDA-cleared devices specify candidate characteristics such as sufficient upper-extremity strength to use assistive devices (hands and shoulders able to support crutches or a walker), healthy bone density, no fractures, general good health, ability to stand with assistance, and device-specific height and weight limits (example: ReWalk height 160–190 cm; weight ≤100 kg).

These are manufacturer/FDA intended use descriptions, not coverage approvals. Some clearances restrict use to supervised rehabilitation settings and require trained personnel and a user assessment and training certification program.

Documentation & Verification

Documentation Required

Verify benefits per member's contract

Providers must verify benefits according to the member's contract; refer to the applicable Benefit Booklet, Evidence of Coverage, or Subscriber Agreement for coverage details.