About 43% of Children's Health Insurance Program Reauthorization Act (CHIPRA) bonus payments to 12 states over fiscal years 2009 through 2013 were unallowable because the enrollment data was incorrect. The bonuses totaled more than $645 million; the unallowable payments totaled more than $277 million. The Centers for Medicare & Medicaid Services (CMS) has taken significant action to recover these overpayments. Unallowable CHIPRA Bonus Payments. FY 2009 To 2013 State Fiscal Years Audited Original Payments Allowable Payment Unallowable Payment (Differences) Percent Overpaid Alabama 2009–2010 $95 . . .