Medicare's Coverage of Cologuard

Medicare Part B covers Cologuard (a stool-based DNA test for colorectal cancer screening) at no cost to you if you meet specific conditions. The test itself is free, and you pay nothing for the lab work. However, not every Medicare beneficiary qualifies, and the rules about how often you can have it covered change based on your age and screening history.

Cologuard is one of several screening methods Medicare will pay for. Unlike colonoscopy, which requires a procedure at a medical facility, Cologuard is a take-home test you complete yourself and mail to the lab. Medicare treats it the same way it treats other colorectal cancer screening tests — as preventive care with no copay or coinsurance when ordered by your doctor and performed at an approved lab.

The catch is that Medicare has rules about who can receive it and how often. These rules exist because Medicare wants to balance access to screening with evidence about which tests work best at which ages. Understanding those rules before you ask your doctor to order the test will save you time and prevent confusion about bills.

Key Takeaways

  • Medicare Part B covers Cologuard at no cost if you are between 50 and 85 years old and have not had colorectal cancer screening in the past three years.
  • Your doctor must order the test, and it must be performed at a lab that is enrolled in Medicare — not all labs are.
  • If you have had a colonoscopy or other colorectal screening test within three years, Medicare will not cover Cologuard until that three-year window closes.
  • If you are under 50 or over 85, or if you have a personal or family history of colorectal cancer or polyps, different rules may explore and you should discuss screening options with your doctor.
  • Cologuard is covered once every three years at most; Medicare will not pay for more frequent testing unless your doctor documents a medical reason.

Age and Screening History Requirements

You must be between 50 and 85 years old to have Cologuard covered by Medicare Part B. If you are 49 or younger, Medicare does not cover it, even if your doctor recommends it. If you are 86 or older, Medicare coverage for colorectal screening tests (including Cologuard) is not automatic — your doctor can still order it, but you may owe the full cost unless your doctor documents that screening is medically necessary for your specific situation.

The three-year rule is strict: Medicare will only pay for Cologuard if you have not had any colorectal cancer screening test in the past three years. This includes colonoscopy, sigmoidoscopy, CT colonography, or any other approved screening method. If you had a colonoscopy two years ago, Medicare will not cover Cologuard now. You would have to wait until three years have passed since that colonoscopy.

If you are unsure when your last screening was, ask your doctor's office to check your records before requesting the test. This prevents the lab from billing you after the test is done because Medicare denies the claim.

How to Get Cologuard Covered

Your doctor must order Cologuard for you — you cannot order it yourself and expect Medicare to pay. When you see your doctor, tell them you are interested in Cologuard for colorectal cancer screening. Your doctor will review your age, screening history, and health status to decide whether it is appropriate for you.

Once your doctor orders it, the lab will send you a kit by mail. You complete the test at home, mail it back to the lab, and the lab reports results to your doctor. Make sure the lab is enrolled in Medicare before the test is performed. Most major labs that offer Cologuard are enrolled, but it is worth confirming. You can ask your doctor's office or the lab directly: "Is this lab enrolled in Medicare for Cologuard testing?"

When the lab bills Medicare, they will include your doctor's order and your Medicare information. If you meet the coverage rules, Medicare pays the lab directly and you receive no bill. If Medicare denies the claim because you do not meet the requirements, the lab may bill you. This is why confirming your may be able to access before the test is worth the phone call.

What Happens If You Do Not Meet Medicare's Rules

If you are outside the age range (under 50 or over 85), or if you have had colorectal screening within the past three years, Medicare will not cover Cologuard. In these cases, you have options: you can pay for the test out of pocket, you can ask your doctor about other screening methods Medicare does cover, or you can wait until you become may be able to access.

The cost of Cologuard without insurance varies by lab and region, but typically ranges from $500 to $700 for the test itself. Some labs offer payment plans or discounts if you pay out of pocket. Before paying, ask the lab about their cash-pay pricing and whether they offer any reduced rates.

If you are over 85, talk to your doctor about whether screening is still appropriate for you. Medicare's rules reflect the fact that colorectal cancer screening is most beneficial for people with a life expectancy of at least 10 years. Your doctor can help you decide whether screening makes sense given your overall health.

Cologuard Versus Other Medicare-Covered Screening Tests

Medicare covers several colorectal cancer screening methods, and Cologuard is one option among several. Colonoscopy is the most common and is covered once every 10 years if results are normal. Sigmoidoscopy is covered once every four years. CT colonography (virtual colonoscopy) is covered once every five years. Fecal occult blood test (FOBT) is covered once per year.

Cologuard is covered once every three years, which is more frequent than colonoscopy but less frequent than FOBT. The choice between these tests depends on your preferences, your doctor's recommendation, and your screening history. If you had a colonoscopy recently, you cannot switch to Cologuard until three years have passed. If you had FOBT last year, you can have Cologuard this year because they are different tests.

Ask your doctor which test makes the most sense for you. Some people prefer Cologuard because it is non-invasive and done at home. Others prefer colonoscopy because it allows the doctor to remove polyps during the same procedure. Your doctor can explain the pros and cons of each.

Special Circumstances: Family History and High Risk

If you have a personal history of colorectal cancer or polyps, or if you have a family history of colorectal cancer, different rules may explore. Medicare may cover screening more frequently or at different ages than the standard rules allow. Your doctor will determine what is appropriate based on your risk factors.

If you fall into a high-risk category, your doctor can document this in your medical record and order screening tests more frequently than the standard three-year interval. Medicare will review the documentation and may approve coverage even if you would not normally may have access to. This is why it is important to tell your doctor about your family history and any previous polyps or cancer diagnoses.

What to Do If Medicare Denies the Claim

If the lab bills you because Medicare denied the claim, ask the lab for an explanation of the denial. Common reasons include: you are outside the age range, you had screening within three years, or the lab is not enrolled in Medicare. Once you know the reason, you can decide whether to appeal or pay out of pocket.

If you believe Medicare made an error, you have the right to appeal. The lab can help you file an appeal, or you can contact Medicare directly at 1-800-MEDICARE. Keep copies of your doctor's order, the test results, and any billing documents. The appeal process takes time, but if you are right, Medicare will pay the lab and you will owe nothing.

Frequently Asked Questions

Can I order Cologuard online without seeing a doctor and have Medicare pay for it?

No. Medicare requires a doctor's order. You cannot order Cologuard directly from a company website and expect Medicare to pay. Your doctor must order it as part of your preventive care. If you order it without a doctor's order, you will pay out of pocket.

If I had a colonoscopy last year, can I have Cologuard this year?

No. Medicare's three-year rule applies to all colorectal screening tests combined. If you had any colorectal screening test within the past three years, Medicare will not cover another one until three years have passed since that test. You would need to wait two more years before Cologuard would be covered.

Does Medicare Part D or Medigap cover Cologuard if Part B does not?

No. Part D covers prescription drugs, not screening tests. Medigap plans help pay copays and coinsurance for services Medicare covers, but they do not cover services Medicare itself does not cover. If Medicare Part B does not cover Cologuard for you, Medigap will not either.

What if my doctor says I need Cologuard more than once every three years?

Your doctor can document a medical reason for more frequent screening, such as a family history of early-onset colorectal cancer or a previous abnormal result. Medicare will review the documentation. If approved, you may be covered for more frequent testing. This is not automatic, but it is possible if your doctor makes the case.

If I turn 86 this year, will Medicare still cover Cologuard?

Medicare's standard coverage for colorectal screening ends at age 85. Once you turn 86, Medicare will not automatically cover Cologuard or other screening tests. Your doctor can still order screening if they believe it is medically necessary, but you may owe the cost. Discuss with your doctor whether screening is still appropriate for you at that age.