Osteoporosis often has no symptoms until a bone breaks, which is why a bone density test can be so valuable, and Medicare covers it as free preventive care for people at risk. The key is meeting the eligibility criteria and having the test coded correctly. This guide explains who qualifies, how often, and what you will pay. Coverage and costs change, so verify current details before relying on them.
The Short Answer
Yes. Part B covers a bone mass measurement, such as a DEXA scan, once every 24 months, and more often when medically necessary, for people who meet the risk criteria. You pay nothing if the provider accepts assignment.
What Is Covered
Part B covers the bone mass measurement used to assess your risk of fracture or osteoporosis, classified as a preventive service. Medicare’s own language is clear: “you pay nothing for this test if the doctor or other health care provider accepts assignment.” The standard frequency is once every 24 months, or more often if your doctor documents medical necessity.
Who Qualifies
You qualify if you meet one or more of these conditions: you are a woman whose doctor determines you are estrogen-deficient and at risk for osteoporosis; your X-rays suggest possible osteoporosis, osteopenia, or vertebral fractures; you take or are about to start prednisone or steroid-type drugs; you have been diagnosed with primary hyperparathyroidism; or you are being monitored to see whether your osteoporosis drug therapy is working. Note that men qualify too if they meet one of these conditions.
What You Will Pay
You pay $0 when you meet the criteria and the provider accepts assignment. Two things can change that. If the provider does not accept assignment, you could owe more. And if the test is ordered as diagnostic rather than preventive, for example to work up a condition outside the qualifying criteria, standard Part B cost-sharing of 20% after the deductible could apply. So the rule of thumb is that a preventive test, when you meet the criteria, is free, while other uses may carry the usual cost-sharing.
Medicare Advantage and Medigap
Medicare Advantage plans must cover this preventive service, and when you meet the criteria and use in-network providers, it is typically $0. Medigap matters little here since the preventive test is already free, but it would help if the service ends up billed with Part B cost-sharing.
What to Do
Ask your doctor to confirm you meet at least one qualifying condition and to code the scan as the preventive bone mass measurement, and make sure the facility participates in Medicare. If you want a scan sooner than 24 months, your doctor can document medical necessity. Note that osteoporosis drugs are covered separately, some injectables under Part B and oral drugs under Part D, under different rules than the test.
Who Qualifies for a Covered Bone Density Test
Medicare covers bone density tests for people at risk of osteoporosis. Certain conditions make you eligible.
These include being a woman at risk, having certain hormone or thyroid conditions, taking steroids long term, or showing signs of bone loss on X-ray. Your doctor determines whether you qualify. If you do, the test is a valuable, covered screening.
How Often It Is Covered
Medicare covers the test on a set schedule. Usually that is every two years.
For most qualifying people, Medicare covers a bone density test once every 24 months. It may cover it more often if medically necessary, such as when monitoring a treatment. Your doctor can explain your schedule. Staying on track helps catch bone loss early.
What the Test Shows
A bone density test is quick and painless. It measures the strength of your bones.
The result helps your doctor assess your risk of fractures and diagnose osteoporosis. Based on it, your doctor may recommend treatment or lifestyle changes. Knowing your bone health helps you prevent serious fractures later.
Protecting Your Bone Health
Beyond testing, you can take steps to protect your bones. These support what the test measures.
Getting enough calcium and vitamin D helps, through diet or supplements your doctor recommends. Weight-bearing exercise strengthens bones. Avoiding smoking and limiting alcohol help too. If a test shows bone loss, your doctor may add treatment to this foundation.
Medicare and Bone Density Tests FAQs
How often will Medicare pay for a bone density test?
Once every 24 months, and more often if medically necessary.
What does it cost?
Nothing, if you meet the criteria and the provider accepts assignment.
Is a DEXA scan covered?
Yes. It is the common bone mass measurement that Part B covers.
Do men qualify?
Yes, if they meet a qualifying condition such as steroid use, hyperparathyroidism, or X-ray findings.
What if I want one sooner than 24 months?
It is covered if your doctor documents medical necessity.
Does Medicare cover osteoporosis drugs?
Yes, separately. Some injectable drugs fall under Part B and oral drugs under Part D.
