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. 2013 Aug 28;20(1):9–18. doi: 10.1016/j.echu.2013.07.001

Table 2.

National Medicare fee-for-service error rates, 2008

Provider type Paid claims error rate
 Provider compliance error rate
Error rate Projected improper payment amount Standard error 95% Confidence interval
Chiropractic 10.5% $57,754,537 1.2% 8.2%-12.9% 30.2%
All provider types 4.5% $3,366,409,599 0.1% 4.2%-4.8% 15.5%

Adapted from CMS.gov: Improper Medicare Fee-For-Service Payments Report—May 2008 Report http://www.cms.gov/apps/er_report/preview_er_report.asp?from=public&which=long&reportID=9&tab=4.