DSM-V

DSM-4 WAS PUBLISHED IN 1994

I don't see it in the DSM II published in 1968.

It is in the DSM III published in 1980.

The DSM IV Diagnostic manual was first published in 1994. The DSM IV - TR is a text revision published in 2000. So the most current edition is indeed the DSM IV - TR. The DSM V is due in 2012 and may be very different from the current style.

See http://www.psych.org/mainmenu/research/dsmiv/dsmivtr.aspx for more info.

The main difference between DSM-II and DSM-III is that DSM-III introduced a systematic multiaxial diagnostic system and a more comprehensive approach to diagnosis. DSM-III also included specific diagnostic criteria for each disorder, moving away from the broader diagnostic categories of DSM-II. Additionally, DSM-III incorporated a more atheoretical approach to diagnosis, focusing on observable symptoms rather than theoretical explanations.