CMS recently posted to its website a Final Report prepared by Abt Associates titled “Analysis of 2006 – 2007 Home Health Case-Mix Change.” The report is dated August 20, 2009.
According to the Report, the average case-mix score of Medicare home health patients increased by 15.03 percent between 2000 and 2007, of which 13.56 percent is atributable to “case mix creep,” according to Abt’s analysis.