Medicare, the national federal insurance program for Americans aged 65 and older, issued $6.7 billion in 2010 for health care visits that were improperly coded according to the report from the inspector general of the Department of Health and Human Services. But in its reply to the findings, the Centers for Medicare and Medicaid Services, which runs Medicare, said it doesn't plan to review the billings of doctors who almost always charge for the most expensive visits because it isn't cost-effective to do so.
