Most insurance plans can cover a knee scooter, but only when specific conditions are met. The device must be deemed medically necessary, meaning you need a documented reason why standard crutches or a cane won’t work for you. Coverage isn’t automatic, and the rules vary significantly between Medicare, Medicaid, and private insurers.
What Insurance Companies Look For
Insurance companies classify knee scooters as durable medical equipment (DME). To approve coverage, they generally require two things: a qualifying below-the-knee injury or condition, and a reason you can’t use a simpler device like crutches or a cane. Simply preferring a knee scooter over crutches for comfort or convenience is not enough.
Aetna’s policy spells out the standard most insurers follow. They’ll cover a knee scooter if you meet the criteria for a standard walker, crutch, or cane but are unable to use one due to other impairments. For example, if you only have one functional arm, lack the upper body strength to manage crutches safely, or have a weight that exceeds what crutches can support. Blue Cross Blue Shield of Michigan similarly notes that crutches have weight restrictions that don’t apply to knee scooters, and that older adults or people with upper body limitations may genuinely need the wheeled alternative.
The key phrase in every policy is “medically necessary.” If your doctor can document why crutches are unsafe or impractical for your specific situation, your odds of approval go up substantially.
How Medicare Handles Knee Scooters
Medicare Part B covers mobility assistive equipment when a beneficiary has a “personal mobility deficit sufficient to impair their participation in mobility-related activities of daily living,” including basic tasks like toileting, dressing, grooming, and bathing. The device must be needed in your home, not just for getting around outside.
Medicare typically covers 80% of the approved amount for DME after you’ve met your annual Part B deductible. You’re responsible for the remaining 20%. If you have a Medigap supplemental plan, it may pick up part or all of that remaining cost.
One important detail: you must get your knee scooter from a Medicare-enrolled DME supplier. If the supplier doesn’t accept Medicare assignment, you’ll need to pay the full cost upfront and wait for Medicare to reimburse you later for its share.
What Your Doctor Needs to Document
Your doctor’s prescription is the foundation of any insurance claim. A vague note saying you need a knee scooter won’t cut it. The documentation should include your specific diagnosis (the injury or condition affecting your lower leg), why you can’t bear weight on that leg, and a clear explanation of why crutches, a cane, or a standard walker isn’t a safe or viable option for you.
Common reasons that strengthen a claim include arthritis or injury in the hands, wrists, or shoulders that prevents safe crutch use; balance disorders; body weight exceeding crutch weight limits; or neurological conditions affecting grip strength. The more specific the documentation, the smoother the approval process. If your insurer denies the initial claim, the quality of this medical documentation is what matters most in an appeal.
Rental vs. Purchase
Insurance plans handle knee scooters differently when it comes to renting versus buying. Medicare gives you options depending on the type of equipment: you may be required to rent, required to buy, or allowed to choose. For some rental arrangements, the equipment becomes yours after a set number of monthly payments.
Renting often makes more sense for short recovery periods. If you’re healing from a foot surgery and expect to be non-weight-bearing for six to eight weeks, a rental covers exactly the time you need. Purchasing makes sense for longer recoveries or chronic conditions. Your insurer may have a preference, and some will only reimburse one option.
Before you pick up a knee scooter from any supplier, call your insurance company and ask specifically whether they cover rental, purchase, or both, and whether the supplier you’re considering is in-network.
What It Costs Without Insurance
If your insurance denies coverage or you’d rather skip the paperwork, knee scooters are relatively affordable compared to other mobility devices. Basic models retail for around $120, while premium all-terrain versions with four-wheel steering run closer to $500. Most standard models for indoor and outdoor use fall in the $150 to $300 range.
Local medical supply stores and some pharmacies offer rentals, typically in the range of $30 to $60 per week or $100 to $200 per month. If your recovery timeline is under six weeks, renting is usually cheaper than buying. For longer recoveries, purchasing a budget model and reselling it afterward can be the most cost-effective route.
How to Improve Your Chances of Approval
Start by asking your doctor to write a detailed prescription that addresses medical necessity, not just the injury itself but why alternative devices won’t work. Call your insurance company before ordering or renting anything, and ask for the specific coverage criteria they use for DME coded as E0118, which is the billing code suppliers use for knee scooters (officially described as a “crutch substitute, lower leg platform, with or without wheels”).
Use an in-network, insurance-enrolled DME supplier whenever possible. Out-of-network suppliers can result in higher out-of-pocket costs or outright claim denials. Keep copies of everything: the prescription, any prior authorization paperwork, and receipts. If your claim is denied, ask for the denial in writing. Many denials are overturned on appeal when the supporting medical documentation clearly establishes why crutches aren’t a safe option.
Some suppliers will handle the insurance billing process for you, including obtaining prior authorization. Ask about this before you commit, as it can save significant time and reduce the risk of a billing error that leads to denial.