Jankovic and Mejia describe klazomania as due to tourettism (tics having Tourette syndrome-like features but not due to TS). According to the revised fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), Tourette's may be diagnosed when the other diagnostic criteria are met and symptoms cannot be attributed to another general medical condition.[4] Hence, other medical conditions that include tics or tic-like movements—such as tourettism—must be ruled out before a TS diagnosis can be conferred. There are no specific tests; the diagnosis is based on history and symptoms.[5]