DSM-5 is the product of the most extensive discussion and debate -- as part of the most transparent process -- of any DSM.

CNN: Are we over-diagnosing mental illness?

"The development of DSM-5 began with an unprecedented process of research evaluation that included a series of white papers and 13 scientific conferences supported by the National Institutes of Health, " wrote Dr. David Kupfer, chairman of the University of Pittsburgh School of Medicine, who oversees the entire DSM-5 task force, in an e-mail.

CNN: Are we over-diagnosing mental illness?