The American Psychiatric Association (APA) has published an official manual describing and classifying various kinds of psychological disorders. It is known as :

Diagnostic and Statistical Manual of Mental Disorder

The American Psychiatric Association (APA) has published an official manual describing and classifying various kinds of psychological disorders. The current version of it, the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5), presents discrete clinical criteria which indicate the presence or absence of disorders.