The DSM-5, the latest revision of the "bible" of mental health disorders, will be issued within days. It's been 13 years since the last update, and it could have a significant impact on the diagnosis, treatment and funding of a number of currently recognised mental health disorders -- from addiction to Asperger's. But not everyone is happy about it.

The DSM is shorthand for the solemnly titled Diagnostic and Statistical Manual of Mental Disorders, the framework psychiatrists and others in the mental health profession use to diagnose disorders and psychiatric conditions. Developed and published by the American Psychiatric Association, it's generally considered the definitive text on what constitutes a mental disorder. The current edition is the DSM-IV-TR (text revision) was published in 2000; the new manual will be released at the APA's annual meeting in San Francisco this weekend.