Powered exoskeleton orthosis (DMEPOS) coverage criteria
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Defines Northwood coverage stance and HCPCS coding for powered lower‑extremity exoskeleton orthoses used to enable ambulation for individuals with spinal cord injury and other lower‑limb impairments; applies to benefit determinations for DMEPOS items under Northwood's plans.
No material clinical or coverage changes in this revision.
Coverage determination and exclusions
Coverage stance and requirements
Coverage determination summary
Requests are generally not covered under medical necessity due to investigational status.
Final benefit determinations depend on the member's contract and applicable statutory/regulatory requirements.
These programmatic prerequisites are informational and do not change the investigational coverage stance.
Equipment that is used primarily and customarily for a non‑medical purpose is not considered durable medical equipment (DMEPOS) and is excluded from coverage. Coverage determinations are made on a case‑by‑case basis and remain subject to the terms, conditions, limitations, and exclusions of the member's contract, including medical necessity requirements.
Northwood designates powered exoskeleton devices (for example, the ReWalk Personal System) as experimental, investigational, or unproven. As such, these devices are not supported as medically necessary under this policy and requests for coverage are generally not approved.
HCPCS and billing codes
| K1007 | Bilateral hip, knee, ankle, foot device, powered, includes pelvic 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 (Code effective 10/1/20). |
Actions required from ordering providers
Prior authorization implied for K1007 — submit supporting clinical documentation
Prior authorization is implied for requests billed with HCPCS K1007; submit the prior authorization request with full supporting clinical documentation and the rehabilitation plan so the carrier/plan sponsor can determine medical necessity and benefit eligibility.
- Include HCPCS K1007 on the request (Bilateral powered lower‑extremity exoskeleton).
- Provide clinical rationale and evidence of meeting carrier/plan sponsor indications and limitations of coverage.
No step therapy requirements specified
This policy does not specify any step therapy requirements for powered exoskeleton devices; no prior trial of alternative devices or therapies is mandated by the policy text.
Supporting documentation required for medical necessity
Requests must include documentation demonstrating device identity and FDA prescription status, clinical rationale tied to spinal cord injury or other lower‑limb impairment, and a coordinated rehabilitation and training plan with licensed PT and caregiver support.
- Device model and statement of FDA classification as a prescription device (if applicable).
- Clinical indication and rationale referencing SCI or other lower‑limb impairment; evidence that device use is intended to treat or improve function per carrier/plan sponsor criteria.
- Detailed rehabilitation/training plan showing coordinated, structured rehabilitation prior to and during home use with a skilled, licensed physical therapist.
- Documentation of dedicated caregiver availability and access to a facility offering the device rehabilitation program.
High denial risk — device considered experimental/investigational
Requests for powered exoskeleton devices are subject to denial because the policy designates these devices as experimental, investigational, or unproven.
- Example device named in policy: ReWalk Personal System.
- Even with supporting documentation, the investigational stance may result in non‑coverage determinations per the carrier/plan sponsor.
Informational medical necessity considerations
Informational medical necessity considerations
Programmatic and clinical prerequisites noted by policy (informational only given investigational stance):
Informational only — device is considered investigational and requests are generally not covered.
Providers should submit this documentation with any prior authorization request, but submission does not guarantee coverage due to investigational designation.
Documentation to submit with requests
Submit clinical documentation and rehabilitation plan with prior authorization request
When submitting a prior authorization request, include the device model and FDA status, the clinical rationale tied to the patient’s condition, and a rehabilitation training plan showing skilled PT involvement, caregiver support, and access to a facility program.
- Device model and FDA clearance/authorization status
- Clinical rationale referencing spinal cord injury or other lower‑limb impairment
- Rehabilitation training plan with licensed physical therapist involvement and timeline (weeks to months)
- Evidence of dedicated caregiver support and access to a facility offering the device program
Clinical background and device overview
A powered exoskeleton orthosis is a wearable, robotic external orthosis that provides powered hip and knee motion to enable standing and ambulation for individuals with paralysis or weakened lower limbs. These systems are prescription devices intended to be placed over the user’s trunk and lower extremities and are typically controlled by user input (for example, a wrist‑pad controller or torso tilt sensor). FDA‑cleared systems require lengthy training and coordinated rehabilitation before and during home use, including skilled physical therapy and caregiver support.
Key definitions
Rental, purchase, and acquisition notes
| Item | Rental vs Purchase rule | Policy note / action |
|---|---|---|
| Powered lower‑extremity exoskeleton orthosis (powered hip/knee/ankle/foot device) | Not specified by this policy | Coverage determinations (including rental vs purchase) are made on a case‑by‑case basis and are subject to the member's contract, terms, conditions, limitations, and medical necessity requirements; equipment primarily for non‑medical use is excluded. |
Replacement and repairs
Explicit non‑coverage
Powered exoskeleton orthoses (policy examples include the ReWalk Personal System) are considered experimental, investigational, or unproven and are therefore not covered under this policy. Coverage determinations remain subject to the member’s contract terms and medical necessity criteria, and the investigational designation creates a high risk of claim denial for these devices.
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