Abstract
The recent release of the Diagnostic and Statistical Manual of Mental Disorders (5th edition) by the American Psychiatric Association has led to much debate. An effective classification requires a reliable and valid system for categorization of clinical phenomena in order to aid communication, select interventions, indicate aetiology, predict outcomes, and provide a basis for research. DSM-5 remains a categorical classification of separate disorders, but mental disorders do not always fit completely within the boundaries of a single disorder. There are some interesting contributions of DSM-5, such as the chapters of addictions and of personality disorders. Addiction label has also been given to behavioral excesses that have no external substance as a goal (e.g. gambling disorder). Personality disorders remain unchanged, but there is an alternative model in Section III based on a dimensional approach which might replace the current categories. The basic reason for controversy is the expansiveness of DSM-5 psychiatric diagnosis, both in terms of newly introduced categories and loosening the criteria for diagnosis in existing categories. Unanswered questions for future research in this field are commented upon.
