Psychiatry is that the branch of drugs focused on the diagnosis, treatment and prevention of mental, emotional and behavioral disorders. A psychiatrist may be a medical doctor (an M.D. or D.O.) who focuses on psychological state , including substance use disorders. The American Journal of Psychiatry may be a monthly peer-reviewed medical journal covering all aspects of psychiatry, and is that the official journal of the American Psychiatric Association.[1] the primary volume was issued in 1844, at which era it had been referred to as the American Journal of Insanity. The title changed to the present form with the July issue of 1921. Psychiatry is that the medicine dedicated to the diagnosis, prevention, and treatment of mental disorders.[1][2] These include various maladaptations associated with mood, behaviour, cognition, and perceptions. See glossary of psychiatry. Initial psychiatric assessment of an individual typically begins with a history and mental status examination. Physical examinations and psychological tests could also be conducted. once in a while , neuroimaging or other neurophysiological techniques are used. Mental disorders are often diagnosed in accordance with clinical concepts listed in diagnostic manuals like the International Classification of Diseases (ICD), edited and employed by the planet Health Organization (WHO) and therefore the widely used Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association (APA). The fifth edition of the DSM (DSM-5) was published in 2013 which re-organized the larger categories of varied diseases and expanded upon the previous edition to incorporate information/insights that are according to current research.