You’re likely familiar with Medicare, the federal health insurance program for individuals 65 and older, as well as younger people with certain disabilities and End-Stage Renal Disease. But when you need medical equipment or supplies – think walkers, wheelchairs, CPAP machines, or diabetic testing supplies – you’re entering the realm of Medicare Durable Medical Equipment, often shortened to Medicare DME. While Medicare generally covers a significant portion of your healthcare costs, understanding the specifics, particularly the often-misunderstood 20% coinsurance, is crucial to managing your out-of-pocket expenses. This article aims to demystify this aspect of Medicare DME, ensuring you know what to expect.
Before we delve into the financial specifics, it’s important to establish what Medicare considers Durable Medical Equipment. This isn’t just any medical item; it has to meet certain criteria.
Defining Durable Medical Equipment
What “Durable” Means in This Context
The term “durable” in DME doesn’t necessarily mean something that will last your entire lifetime, though some items might. Instead, it refers to equipment that is:
- Sturdy and Long-Lasting: It’s designed for repeated use and is not disposable. Think of a walker frame versus a disposable bandage.
- Serves a Medical Purpose: The primary function of the equipment is to treat or diagnose a medical condition.
- Appropriate for Home Use: While some DME might be used in a clinical setting, it’s typically intended for use in your own residence.
Examples of Common Medicare DME
To give you a clearer picture, here are some common categories and examples of items that typically qualify as Medicare DME:
Mobility Aids
If you have difficulty moving around, Medicare may cover devices that help.
Walkers and Canes
These are fundamental tools for individuals with balance issues or weakness.
Wheelchairs and Scooters
For more significant mobility impairments, powered or manual wheelchairs, as well as mobility scooters, can be prescribed.
Respiratory Equipment
For conditions affecting your breathing, specific devices are available.
CPAP Machines and Supplies
Continuous Positive Airway Pressure (CPAP) machines are standard for treating sleep apnea, and Medicare covers the machine itself, along with masks, tubing, and filters.
Oxygen Equipment
If you have a condition causing low blood oxygen levels, Medicare can cover oxygen concentrators, tanks, and related accessories.
Therapeutic and Rehabilitative Equipment
These items aid in recovery and managing chronic conditions.
Hospital Beds and Mattresses
For individuals who are bedbound or require specific positioning for medical reasons.
Bracing and Support Devices
Such as knee braces, back braces, and other orthopedic supports.
Home Health and Monitoring Equipment
Some devices used for monitoring or assisting with daily living activities can also qualify.
Blood Glucose Monitors
Essential for individuals managing diabetes.
Lymphedema Pumps
Used to treat lymphedema, a condition causing swelling.
When considering Medicare coverage for durable medical equipment (DME), it’s important to understand the associated costs, including the 20 percent coinsurance that beneficiaries are responsible for after meeting their deductible. For more detailed information on this topic, you can refer to a related article that discusses the nuances of Medicare DME coverage and the financial implications for seniors. To learn more, visit this article.
Medicare Coverage for DME: The General Framework
Medicare Part B is the primary payer for most durable medical equipment. It’s essential to understand that coverage isn’t automatic; there are specific requirements that must be met.
The Role of Medicare Part B
Understanding What Part B Covers
Medicare Part B helps cover outpatient services and medical equipment. This includes:
- Doctor’s visits and outpatient hospital care.
- Preventive services.
- Durable medical equipment (DME).
Medical Necessity: The Cornerstone of Coverage
For any DME item to be considered for Medicare coverage, it must be deemed medically necessary by your doctor.
What “Medically Necessary” Entails
Your physician must document that the equipment is:
- Prescribed for a Specific Medical Condition: It’s not for convenience or general improvement of life if no underlying medical issue necessitates it.
- Reasonably Expected to Improve Your Health or Functioning: The equipment should have a tangible positive impact on your condition.
- Appropriate for Your Home Environment: It should be suitable for use in your residence.
The Doctor’s Prescription and Medical Records
Your doctor’s prescription is the first step, but often, additional documentation is required. This might include detailed medical records, test results, and evaluations that support the need for the DME. This documentation is what the DME supplier will submit to Medicare.
Approved Suppliers and Prior Authorization
Medicare has a network of approved suppliers for DME. Using an out-of-network supplier can lead to higher costs or no coverage at all.
Finding an Approved DME Supplier
The Importance of Using Medicare-Approved Providers
Medicare maintains a list of suppliers who meet its quality and billing standards. When you obtain DME from an approved supplier:
- Billing is Streamlined: Approved suppliers know how to bill Medicare correctly, reducing the chances of claim denials.
- You’re Protected from Fraud: Medicare works to ensure these suppliers are legitimate.
When Prior Authorization Might Be Required
For certain high-cost or complex DME items, Medicare may require “prior authorization.”
Understanding the Prior Authorization Process
This means the DME supplier or your doctor must get approval from Medicare before you receive the equipment. This process helps ensure that the item is indeed medically necessary and meets Medicare’s guidelines. Not all DME requires prior authorization, but it’s common for power wheelchairs, custom wheelchairs, and other costly items.
The 20% Coinsurance: Breaking Down Your Responsibility

This is where many beneficiaries encounter confusion and unexpected out-of-pocket expenses. The 20% coinsurance is a standard feature of Medicare Part B coverage for many services and items.
How Coinsurance Works with Medicare Part B
Coinsurance is a form of cost-sharing. After you’ve met your Medicare Part B deductible for the year, Medicare pays 80% of the Medicare-approved amount for most services and DME, and you are responsible for the remaining 20%.
The Medicare Part B Deductible
What You Need to Pay First
Before Medicare starts paying its 80% share, you must meet your annual Part B deductible. For the current year, the Part B deductible is a set amount. Once you’ve paid this deductible, Medicare begins to cover its portion.
Calculating Your 20% Share
How the Coinsurance is Applied
Once the deductible is met, the 20% coinsurance applies to the Medicare-approved amount for the DME. It’s crucial to understand that this is 20% of the approved amount, not the supplier’s retail price.
- Example: Let’s say a walker has a Medicare-approved amount of $200. Your doctor prescribes it, and it’s deemed medically necessary. After you’ve met your Part B deductible, Medicare will pay 80% of $200, which is $160. You will be responsible for the remaining 20%, which is $40.
The Importance of the Medicare-Approved Amount
This is a critical distinction. Suppliers cannot arbitrarily set prices for DME covered by Medicare. Medicare establishes a fee schedule, or an approved amount, for most DME items.
Understanding Assignment
The Role of Supplier Agreements
When a DME supplier “accepts assignment,” it means they agree to accept the Medicare-approved amount as full payment for the service or item.
- If the supplier accepts assignment: You pay your 20% coinsurance on the approved amount. The supplier bills Medicare directly for the remaining 80%.
- If the supplier does not accept assignment: This can be more complex. They may charge you more than the Medicare-approved amount, and you’ll be responsible for the difference in addition to your 20% coinsurance. It is highly advisable to use suppliers who accept assignment.
What if the Supplier Charges More Than the Approved Amount?
If a supplier does not accept assignment and charges more than the Medicare-approved amount, you are responsible for the difference between what Medicare approves and what the supplier charges, in addition to your 20% coinsurance on the approved amount. This is known as “excess charges” and can significantly increase your out-of-pocket costs. Always confirm if a supplier accepts assignment.
Factors That Can Influence Your DME Costs

While the 20% coinsurance is the standard, other elements can impact the total amount you pay for Medicare DME.
Rental vs. Purchase of DME
Medicare’s coverage rules can differ depending on whether the DME is rented or purchased.
When DME is Rented
For many DME items, Medicare will cover the rental cost on a monthly basis.
- Rental caps: There are often caps on how long Medicare will pay for a rental. Typically, after a certain period (often 13 months), if the equipment is still medically necessary, Medicare may consider it “rent-to-own,” and you will own the equipment. The 20% coinsurance applies to the monthly rental payments.
When DME is Purchased
Some DME items are purchased outright.
- Outright purchase coverage: For items considered inexpensive and routinely needed, or for items with a purchase price that is less than 10 months’ rental, Medicare may cover the purchase price. Again, the 20% coinsurance applies to the Medicare-approved purchase price.
Different Types of Medicare Plans and DME Coverage
Your specific Medicare plan can significantly influence your out-of-pocket DME expenses.
Original Medicare (Part A and Part B)
As discussed, under Original Medicare, you generally face the 20% coinsurance for DME after meeting your Part B deductible. There is no annual out-of-pocket maximum for services covered under Original Medicare.
Medicare Advantage (Part C)
These plans are offered by private insurance companies approved by Medicare.
How Advantage Plans May Differ
Medicare Advantage plans must cover everything that Original Medicare covers, but they can do so with different cost-sharing structures.
- Potentially Lower Coinsurance/Copays: Many Advantage plans have lower coinsurance percentages or fixed copayments for DME, making them more predictable for beneficiaries.
- Provider Networks: Advantage plans typically have provider networks. You’ll need to ensure your DME supplier is within the plan’s network to receive full coverage benefits.
- Out-of-Pocket Maximums: A significant benefit of Medicare Advantage plans is their annual out-of-pocket maximum. Once you reach this limit, the plan pays 100% of your Medicare-covered expenses for the rest of the year. This provides a valuable safety net for those with frequent or expensive healthcare needs.
- Prior Authorization Variations: While Medicare sets guidelines for prior authorization, individual Advantage plans may have their own specific policies and require it for a broader range of DME.
Medicare Prescription Drug Plans (Part D)
While Part D primarily covers prescription drugs, some medications used with DME (like nebulizer solutions) are covered under Part D. However, the DME itself is not.
When navigating the complexities of Medicare, understanding the costs associated with durable medical equipment is crucial, especially the 20 percent coinsurance that beneficiaries may be responsible for. For those seeking more information on this topic, a helpful resource can be found in a related article that provides insights into Medicare coverage and the financial implications of using such equipment. You can read more about it in this informative piece on senior health. This resource can help clarify the nuances of coverage and assist beneficiaries in making informed decisions regarding their medical needs.
Managing Your DME Costs and Understanding Your Bills
| Item | Cost | 20% Coinsurance |
|---|---|---|
| Durable Medical Equipment | 100 | 20 |
| Wheelchair | 500 | 100 |
| Oxygen Equipment | 300 | 60 |
Navigating the costs of DME can be challenging, but there are steps you can take to manage your expenses and ensure you’re not overpaying.
Reviewing Your Medicare Summary Notice (MSN) and Explanation of Benefits (EOB)
These documents are your official record of Medicare’s decision on claims filed on your behalf.
Understanding the MSN
What the MSN Tells You
The MSN is sent by Medicare quarterly and details all the services and items you’ve received and how Medicare has processed them. It shows:
- The provider or supplier who billed Medicare.
- The date of service.
- The amount Medicare approved for the service/item.
- How much Medicare paid.
- Your responsibility (deductible, coinsurance, or copayment).
Understanding the EOB
What the EOB Tells You
If you have a Medicare Advantage plan, you will receive an Explanation of Benefits (EOB) from your plan provider, which serves a similar purpose to the MSN but is specific to your plan. It details:
- What was billed.
- What your plan paid.
- What you owe.
Appealing a Medicare DME Coverage Decision
If you believe Medicare wrongly denied coverage for a DME item that you believe is medically necessary, you have the right to appeal the decision.
The Medicare Appeals Process
Steps to Take When Appealing
The appeals process for DME can be complex and has several levels.
- Reconsideration: The first step is usually a request for a reconsideration by Medicare. You will need to provide additional documentation, such as updated doctor’s statements or new medical evidence, to support your claim.
- Hearing by an Administrative Law Judge (ALJ): If your reconsideration is denied, you can request a hearing before an ALJ. This is a more formal process where you can present your case.
- Further Appeals: If the ALJ decision is unfavorable, you may have further options to appeal to the Medicare Appeals Council and ultimately to federal court.
Tip: It’s often beneficial to have your doctor
FAQs
What is Medicare durable medical equipment 20 percent coinsurance?
Medicare durable medical equipment 20 percent coinsurance refers to the amount that Medicare beneficiaries are responsible for paying when they receive durable medical equipment. This coinsurance amount is typically 20% of the Medicare-approved amount for the equipment.
What is considered durable medical equipment under Medicare?
Durable medical equipment (DME) under Medicare includes items such as wheelchairs, hospital beds, oxygen equipment, and other medically necessary equipment that can withstand repeated use.
Who is responsible for paying the 20 percent coinsurance for Medicare durable medical equipment?
Medicare beneficiaries are responsible for paying the 20 percent coinsurance for durable medical equipment, unless they have supplemental insurance that covers this cost.
Are there any exceptions to the 20 percent coinsurance for Medicare durable medical equipment?
Some Medicare beneficiaries may qualify for financial assistance or have their coinsurance waived if they meet certain income and resource criteria. Additionally, some Medicare Advantage plans may offer different coinsurance amounts for durable medical equipment.
How can Medicare beneficiaries find out the specific coinsurance amount for durable medical equipment?
Medicare beneficiaries can contact their DME supplier or Medicare directly to find out the specific coinsurance amount for the durable medical equipment they need. They can also review their Medicare Summary Notice for details on coinsurance amounts.
