The Centers for Medicare & Medicaid Services (CMS) has identified an error with the risk adjustment for the First and Second Quarter 2014 Clostridium difficile Infection (CDI) data. During the Fiscal Year (FY) 2017 Hospital-Acquired Condition (HAC) Reduction Program Review and Corrections period, held in August, the Centers for Disease Control and Prevention (CDC) notified CMS that CDI data for the first two quarters of 2014 had been calculated with an incorrect risk adjustment. The error occurred in data for hospitals that modified their CDI test type in either Q1 or Q2 2014 from what was reported on their 2013 National Healthcare Safety Network (NHSN) Annual Survey. CMS is taking steps to resolve the data issue for hospitals participating in each of the three programs impacted by the error: the HAC Reduction Program, the Hospital Value-Based Purchasing (VBP) Program, and the Hospital Inpatient Quality Reporting (IQR) Program. Read about CMS steps to resolve the risk adjustment error.