Medicare.gov

Computed tomography (CT) colonography (screening)

Medicare Part B (Medical Insurance) covers computed tomography (CT) colonography screenings.

  • Covered by Part B
  • Preventive Service
  • Once every 24, 60, or 48 months

  • You pay nothing if your provider accepts assignment

Description

A CT colonography screening is a test that uses X-rays and computers to help find polyps (growths), ulcers (sores), and cancer in your colon and rectum. 

Coverage details

Medicare covers a (CT) colonography screening test if your doctor, physician assistant, nurse practitioner, or clinical nurse specialist orders it in writing.  

Who's eligible

Medicare covers a CT colonography screening test if you’re 45 or older. If you’re under 45, Medicare doesn’t cover this test.

Costs

You pay nothing if your doctor or other health care provider accepts assignment

How often

If you’re at high risk for colorectal cancer, Medicare covers this screening test once every 24 months. If you aren’t at high risk, Medicare covers the test once every 60 months, or 48 months after a previous flexible sigmoidoscopy or colonoscopy.  

Ask your doctor or healthcare provider how much your test, item, or service will cost.

Your doctor may recommend services that Medicare does not cover or offers too frequently. This could end up in additional costs for you. Make sure to ask your doctor about the reasons for these recommendations and what Medicare will actually cover.

Specific amounts you could owe depend on:

  • Other insurance you may have

  • How much your doctor charges

  • If your doctor accepts assignment

  • The type of facility

  • Where you get your test, item, or service