6A23.01/F23 Acute and transient psychotic disorder, first episode, in partial remission



Acute and transient psychotic disorder (ATPD) is a mental health disorder characterized by an abrupt onset of psychotic symptoms that last for a short period of time. The cause of ATPD is not known, but it is believed to be related to psychological, environmental, and biological factors.


ATPD is diagnosed based on a clinical assessment that includes a review of medical history, physical exam, and psychological tests. The diagnosis must also meet the criteria outlined in the DSM-5.

Differential diagnosis

ATPD must be differentiated from other mental health disorders, such as schizophrenia, bipolar disorder, major depressive disorder, and substance-induced psychosis.


Treatment for ATPD typically includes a combination of psychotherapy and medications. Psychotherapy may include cognitive behavioral therapy, supportive therapy, or family therapy. Medications may include antipsychotics, mood stabilizers, and/or antidepressants.


The prognosis for ATPD is generally good, with most people achieving full remission after treatment. However, the risk of relapse is high, so it is important for individuals to maintain regular follow-up visits with their mental health provider.

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