Does Medicare Cover PET Scans?

A PET scan — or a positron emission tomography scan — is an imaging tool that lets doctors see how well your tissues and organs are working. It’s often used in diagnosing and staging various cancers.

Medicare will cover most of the cost of PET scans in many situations.

You can’t get a PET scan for just any type of problem. But if your doctor says you need one, Medicare should cover the bulk of the test’s cost.

Will Medicare cover a PET scan?

Medicare Part B covers testing, appointments, and procedures when you aren’t staying in the hospital. These are called outpatient services.

Sometimes, your doctor may need to use certain imaging tools to make a diagnosis or tell how advanced a condition is. You might receive a PET scan in the hospital, but most of time, this test will be performed as an outpatient service when ordered by your doctor.

You might receive a PET scan in one of the following places:

  • hospital outpatient wing
  • freestanding imaging center
  • medical office

Medicare offers an online tool to help you find doctors and facilities that participate in Medicare in your area.

Where you have your scan determines how the test is paid for. For example:

  • If you have a PET scan in the hospital, Medicare Part A will cover it.
  • If you have a PET scan in an outpatient center, like those outlined above, Medicare Part B will cover it.
  • If you have Medicare Advantage, or Medicare Part C, your tests should also be covered. Medicare Advantage plans must cover at least the same basic services as original Medicare (parts A and B). What you pay for your test, however, might differ depending on your plan.

Medicare Part B will cover your outpatient PET scan if your doctor orders the test and it’s considered medically necessary.

Medicare will cover as many PET scans as you need, as long as you meet the criteria. Different conditions that might require a PET scan have different criteria.

The Centers for Medicare & Medicaid Services (CMS) has a specific list detailing the criteria.

How much will PET scans cost with Medicare?

The amount a PET scan will cost you depends on where you have it done.

Part A costs

If you have a PET scan while you’re admitted as an inpatient in the hospital, Medicare Part A will cover your test. This means that:

  • Your cost will be covered under your Medicare Part A coverage.
  • For each benefit period — like a hospitalization for a specific diagnosis — you’ll pay a deductible of $1,484 in 2021.
  • The cost of your test will count toward your Part A deductible.
  • You won’t pay any coinsurance costs beyond that deductible amount, unless you remain in the hospital for more than 60 days.
Part B costs

If you have a PET scan as an outpatient, Medicare Part B will cover your test. This means you’ll pay the following costs:

  • your monthly Medicare Part B premium, which is $148.50 for most people in 2021
  • a $203 deductible for the year
  • coinsurance, which is 20 percent of the Medicare- approved amount for the PET scan after you’ve met your deductible for the year

This means that after you pay your $203 deductible for 2021, you’ll pay for 20 percent of the cost of your PET scan. For example, if your PET scan costs $5,000 before coverage, you’d pay $1,000 and Medicare Part B will pay the remaining 80 percent, or $4,000 in this example.

When might I need a PET scan?

A PET scan is one of the tests a doctor might use to get a detailed view of what’s going on inside your body. The test uses a radioactive medicine called a tracer. You might swallow or inhale it, or it might be injected into your veins for your test.

The tracer will show up brighter during the scan in areas that have increased metabolism — or more chemical activity. There’s usually more activity in areas of disease, like cancer.

Some of the reasons your doctor might order a PET scan include:

  • characterization of pulmonary nodules
  • diagnosis and staging of small cell lung cancer
  • diagnosis and staging of esophageal cancer
  • locating, diagnosing, and staging colorectal cancer
  • diagnosing and staging some lymphomas
  • diagnosing and staging some melanomas
  • examining breast cancers after initial diagnosis
  • diagnosis and staging of head and neck cancers
  • staging thyroid cancers
  • presurgical testing for refractory seizures
  • testing perfusion (blood flow) and viability of the heart in certain conditions
What to expect during a PET scan

When you’re getting ready for a PET scan, you may be asked to change into a hospital gown and empty your bladder before the test begins. The entire scan should take about 2 hours.

At the start of the scan, you’ll be given the tracer that you’ll inhale, swallow, or have injected. You will wait about an hour while your body absorbs the tracer.

You shouldn’t feel any pain, and the technician running the test will tell you when to lie still and when the test is completed.

After the test, you may get dressed and go home. You will probably be advised to drink a lot of fluids to help flush the rest of the tracer from your body. Your doctor will contact you to go over the results of the PET scan.

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