Medicare covers flexible sigmoidoscopy screening once every 48 months for most people 50 or older. If you aren’t at high risk, Medicare covers this test 120 months after a previous screening colonoscopy.
You pay nothing if your doctor or other qualified health care provider accepts assignment . If you have a lesion or growth biopsied or removed during your screening, Medicare considers the procedure diagnostic and you may have to pay coinsurance and/or a copayment . In these cases, the Part B deductible doesn’t apply.
Flexible sigmoidoscopy screenings examine the rectum and lower colon.