The abbreviation DSM can mean several things. Some of the common meanings and full forms of DSM in the general and computers category are as follows: DSM is an international chemicals company, Dependency structure Matrix, Data Storage Management, Device Specific module etc. DSM is also used to mention the Diagnostic and Statistical Manual of Mental Disorder. DSM is a handbook for professionals in Mental Health. This handbook comprises of a list of different categories of mental disorders and their diagnoses. The DSM is extensively used world wise by clinicians and researchers also.