Created 2004-02-02. 2012-01-27 W1-W125 variables on PPS 11 (FY 1994) and PPS 12 (FY 1995) read in as numeric variables using s370zd10. informat. 2010-04-07 Many variables added to pps1985-1991 SAS and Stata data sets. 2008-04-29 Manuals added. Accessed "Paper-Based Manuals" Publication # 15-2 Title "The Provider Reimbursement Manual - Part 2" CMS added these to their website 2008-04-14. "Paper-Based Manuals" site:cms.hhs.gov http://www.cms.hhs.gov/Manuals/PBM/itemdetail.asp?filterType=none&filterByDID=-99&sortByDID=1&sortOrder=ascending&itemID=CMS021935 2007-03-06 Stata data sets added for PPS Minimum files. These were created by Stat/Transferring the SAS datasets. Note: Stat/Transfer imposed a limit of 2,047 variables per Stata data file. So, the 1996-1999 files were split into two parts. The medicare provider number, f1, is in both files. 2005-12-08 negcost was given to two different original PPS variables. The variable name that was made up by the person who wrote the early SAS programs. Modify or delete as you wish.