> 1 day and < 1 month, sudden onset and full return to function
brief psychotic disorder
> 1 month and < 6 months, same symptoms as schizophrenia but functional decline not required
schizopheniform
> or equal to 6 months, includes >1 month of active symptoms, can include prodromal and residual periods, requires functional decline
schizophrenia
concurrent mood episode, active phase symptoms of schizophrenia + > 2 week lifetime history of delusions or hallucinations in the absence of prominent mood symptoms
schizoaffective
> 1 or 1 delusions > 1 month , no other psychotic symptoms, normal functioning apart from direct impact of delusions
delusional disorder