-- Posted by XXemobetchXX at 1:57 pm on Dec. 14, 2008 could you please tell me what DSM is? -- Posted by Dexter Ward at 1:58 pm on Dec. 14, 2008 DSM 4 it lists medical conditions and what constitutes them. Edit It defines mental disorders -- Posted by c0verst0ry at 4:29 am on Dec. 15, 2008 It's the Diagnostic and Statistical Manual of mental disorders.  As said above, it is used to define mental disorders.