As noted in the FY 2011 IPPS/LTCH PPS proposed rule (75 FR 23881), in establishing the HAC payment policy under section 1886(d)(4)(D) of the Act, our experts have worked closely with public health and infectious disease professionals from across the Department of Health and Human Services, including CDC, the Agency for Healthcare Research and Quality (AHRQ), and the Office of Public Health and Sci