Medicare's Coverage of Cologuard

Medicare Part B covers Cologuard — a stool-based DNA test that screens for colorectal cancer — at no cost to you if you meet specific requirements. The test detects precancerous polyps and early-stage cancer by analyzing DNA markers in your stool sample, which you collect at home and mail to a lab.

Coverage is limited to people aged 50 to 85 with average risk for colorectal cancer. If you have a personal or family history of colorectal cancer, polyps, or certain genetic syndromes, you may not be covered under this benefit — your doctor may recommend colonoscopy instead, which Medicare also covers.

The test itself is free under Medicare Part B, but your doctor must order it. You cannot order Cologuard directly and expect Medicare to pay. The ordering physician must be enrolled in Medicare and document that the test meets coverage rules.

Key Takeaways

  • Medicare Part B covers Cologuard at no cost if you are between 50 and 85 years old and have no personal or family history of colorectal cancer or polyps.
  • Your doctor must order the test — you cannot order it yourself and bill Medicare.
  • If you have a history of cancer, polyps, or genetic risk factors, Cologuard may not be covered; colonoscopy is the recommended screening instead.
  • The test is covered once every three years if results are normal.

Who Qualifies for Medicare Coverage

You must be enrolled in Medicare Part B and fall within the age range of 50 to 85. Medicare does not cover Cologuard for people under 50 or over 85, regardless of risk factors.

You must also have average risk for colorectal cancer. This means you have no personal history of colorectal cancer, colorectal polyps, or inflammatory bowel disease. You cannot have a family history of colorectal cancer in a first-degree relative (parent, sibling, or child). If any of these explore to you, Medicare considers you higher-risk and will not cover Cologuard under this benefit.

People with Lynch syndrome, familial adenomatous polyposis, or other hereditary cancer syndromes are also excluded from Cologuard coverage. Your doctor will review your medical history to confirm you meet these requirements before ordering the test.

How to Get Cologuard Through Medicare

Start by scheduling an appointment with your primary care doctor or gastroenterologist. Tell them you want to discuss colorectal cancer screening options. Your doctor will review your age, medical history, and risk factors to determine whether Cologuard is appropriate for you.

If your doctor agrees you may have access to, they will place an order with the Cologuard lab. You do not need to contact the lab yourself. Your doctor's office will provide you with a kit or instructions on how to receive one. You collect a stool sample at home using the kit provided, seal it, and mail it to the lab in the prepaid envelope.

The lab processes the sample and sends results to your doctor within one to two weeks. Your doctor will contact you with the results and discuss next steps. If the test is normal, Medicare covers another Cologuard screening in three years.

What Happens If You Do Not may have access to

If you are outside the age range, have a personal history of polyps or cancer, or have a family history of colorectal cancer, your doctor will likely recommend colonoscopy instead. Medicare covers colonoscopy at no cost for screening purposes, and it is considered the gold standard for detecting and removing polyps before they become cancer.

If you have had a normal colonoscopy, Medicare covers repeat screening every 10 years. If polyps were found and removed, your doctor will recommend a follow-up colonoscopy sooner, usually within 3 to 5 years depending on the findings.

Some people choose to pay out of pocket for Cologuard if they do not meet Medicare's coverage rules. The cost varies by lab and whether you have supplemental insurance, but typically ranges from $500 to $900 before insurance. Contact Cologuard directly or ask your doctor's office for pricing if you want to pursue this option.

Coverage Limits and Frequency

Medicare covers Cologuard once every three years if your previous test was normal. If your test shows results that require follow-up — such as abnormal findings — your doctor may recommend colonoscopy rather than repeat Cologuard screening.

If you switch screening methods — for example, you had a normal Cologuard test and then choose colonoscopy — the timing rules change. Medicare's screening intervals depend on which test you use and what the results show. Your doctor will advise you on the appropriate timing for your next screening based on your results and risk profile.

Common Reasons Medicare Denies Cologuard Coverage

The most common reason for denial is a personal or family history of colorectal cancer or polyps. Medicare's system flags these cases automatically, and the claim is rejected before the test is even ordered. Your doctor should catch this during the initial review, but if a claim is denied, ask your doctor to confirm your history was documented correctly.

Age is another frequent reason. If you are under 50 or over 85, Medicare will not cover Cologuard under the screening benefit. Some people over 85 may have coverage under different circumstances, but this is rare and requires your doctor to request a coverage exception.

Claims are also denied if the ordering provider is not enrolled in Medicare or if the order does not include required documentation. Your doctor's office should handle this, but if you receive a denial notice, contact your doctor's billing department to ask what information was missing.

Frequently Asked Questions

Can I order Cologuard myself and submit it to Medicare?

No. Medicare only covers Cologuard when a Medicare-enrolled doctor orders it. If you order the test directly from the company, Medicare will not pay for it, even if you are may be able to access. You must go through your doctor.

What if my doctor says I need colonoscopy instead of Cologuard?

Your doctor may recommend colonoscopy if you have risk factors that exclude you from Cologuard coverage, or if a Cologuard result requires further investigation. Colonoscopy is also covered by Medicare at no cost for screening. Follow your doctor's recommendation — it is based on your individual health history.

Do I have to pay anything out of pocket for Cologuard?

If you meet all coverage requirements and your doctor orders it, you should pay nothing. However, if you have a Medigap or Medicare Advantage plan, check your plan documents or call your plan to confirm there are no copays or coinsurance amounts for this screening test.

What if I had a Cologuard test before I turned 50 — can Medicare cover it now?

No. Medicare only covers Cologuard for people aged 50 to 85. Tests performed before age 50 are not covered retroactively. However, once you turn 50, you can have a new test ordered by your doctor.

How long does it take to get results?

The lab typically processes the sample and sends results to your doctor within one to two weeks of receiving it. Your doctor will contact you with the results. Do not call the lab directly — results go to your doctor first.