The DSM, of course, is the list of diagnoses written by and for psychiatrists who are dispensing pharmaceuticals which are covered by insurance. The DSM does not consider the possible causes of the disorders listed, nor allow for the possibility that simple lifestyle changes might be adequate to "cure" a disorder. The book is used to authorize the mental health professional to dispense psychoactive medications. No conflicts of interest there (ahem).
The National Institute of Mental Health (NIMH instead of just NIH) has decided that the basis of the DSM is not scientific enough, and it is not using those diagnoses as a foundation for ongoing research. The new Research Domain Criteria (RDoC) project to is intended to transform diagnosis by incorporating genetics, imaging, cognitive science, and more to create a new classification system. The new system of knowledge will be based on biology as well as symptoms, and will consider specific brain circuits, genetics, and experiences without regard for DSM categories. In fact the NIH is looking to support research projects that look across or subdivide current categories.
This is superb and hopeful to every person who has even been stuck with a diagnosis that didn't fit, or medicated when a simpler solution wasn't even entertained. My congratulations to the NIH for being independent enough to seek the truth.
SOURCE
http://www.nimh.nih.gov/about/director/2013/transforming-diagnosis.shtml