The DSM-V initiative "deconstructing psychosis" in the context of Kraepelin's concept on nosology.

The revision process of the international psychiatric classification systems has started and is expected to result in new versions of the International Classification of Disorders (then ICD-11) and the Diagnostic and Statistical Manual (then DSM-V) in approximately 2014 and 2012, respectively. In the process of developing DSM-V, several research conferences jointly sponsored by the American Psychiatric Association, the National Institutes of Health, and the World Health Organization, are currently taking place. We will here focus on the impact that the DSM-V initiative "Deconstructing Psychosis" will have on the future of diagnosing a psychotic state, and how this may be viewed from a European context of Kraepelin's nosology of psychiatric disorders.