Clinical Classifications Software (ICD-9-CM) Summary and Download - Redirect The Clinical Classifications Software (ICD-9-CM) has been updated. To download the latest version of this software, go to:http://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jspPlease update your bookmark. Current as of December 2012 Internet Citation: Clinical Classifications Software (ICD-9-CM) Summary and Download - Redirect. December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/data/hcup/ccs.html