After a normal colonoscopy when no polyps are found, guidelines call for a repeat test in 10 years.
However, almost half of Medicare patients with a negative colonoscopy got another exam within 7 years, and for one in four there was no clear evidence that they needed one.
Because colonoscopies have real risks and are expensive, over-testing can be both dangerous and costly. Given limited numbers of physicians who do colonoscopies, unecessary procedures add to long waiting lists for screening and for necessary follow-up exams.
Although Medicare regulations call for reimbursement only after 10 years in cases where the first procedure didn’t find a problem, payments are being made for earlier exams. In fact, Medicare denied payment for only 2 percent of colonoscopies for which there was no clear indication of need. Read the rest of this entry »





