Interesting site!
In response to the DSM-IV question, here are a few indices containing DSM-IV codes...
DSM-IV Index of Diagnoses and Codes http://www.binary.net/bahr
DSM-IV Dianoses and Codes, Alphabetical http://uhs.bsd.uchicago.edu/dr-bob/tips/dsm4a.html
this site also contains a numerical listing; the file designation is /dsm4n.html
Additionally, there is a Canadian site at http://www.mentalhealth.com/p.html that has DSM-IV and ICD-10 diagnotic criteria (including self-diagnostic applets) for many common Axis I and II disorders.
Hope this is helpful.