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Content ## Delusional Disorder - Symptoms - A. Delusions. Hallucinations are not prominent and must be related to delusional themes - D. Manic or depressive symptoms must be brief (ie. exclude affective disturbance with psychotic features) - Duration - A. Longer than 1 month - Function - C. Function is NOT impaired in areas outside of the delusions - Exclusions - B. Schizophrenia criteria is not met - E. Not organic or substance-induced - E. Not better explained by another mental disorder eg. BDD or OCD - Specifier - Types: erotomaniac, grandiose, jealous, persecutory, somatic, mixed, unspecified - Bizarreness: bizarre or not - Duration: - Only to be used after 1 year - First episode (acute episode, partial remission or full remission) - Multiple episodes (acute episode, partial remission or full remission) - Continuous - Unspecified - Severity ## Brief Psychotic Disorder - Symptoms - A. 1+ of delusions, hallucinations or disorganised speech. Disorganised or catatonic behaviour may also be present. - Duration - B. Longer than 1 day, less than 1 month - Function - B. Full return to premorbid functioning - Exclusions - C. Schizophrenia criteria is not met - C. Not better explained by affective disturbance with psychotic features - C. Not organic or substance-induced - Specifier - Stressors: with (ie. reactive psychosis) or without - Peripartum onset: starts during pregnancy or within 4 weeks postpartum - Catatonia - Severity ## Schizophreniform Disorder - Symptoms - A. 2+ of delusions, hallucinations, disorganised speech, grossly disorganised/catatonic behaviour or negative symptoms. One of first 3 must be present. - Duration - B. Longer than 1 month, less than 6 months. "Provisional" if awaiting recovery. - Exclusions - C. Schizoaffective or affective disturbance criteria is not met due to nil or minor presence of mood symptoms during active-phase symptoms - D. Not organic or substance-induced - Specifiers - Prognostic factors: - Good: 2+ of onset of psychosis within 4 weeks of behavioural change, confusion or perplexity, good premorbid function, absence of flat or blunted affect - Poor - Catatonia - Severity ## Schizophrenia - Symptoms - A. 2+ of delusions, hallucinations, disorganised speech, grossly disorganised/catatonic behaviour or negative symptoms. One of the first 3 must be present. - Function - B. Social, occupational or functional impairment present (academic in C&A) - Duration - A. Psychotic symptoms lasting more than 1 month (unless treated) - C. Signs of disturbance for greater than 6 months (includes prodrome) - Exclusions - D. Schizoaffective or affective disturbance criteria is not met due to nil or minor presence of mood symptoms during active-phase symptoms - E. Not organic or substance-induced - Other - F. If ASD or communication disorder present, requires prominent delusions or hallucinations - Specifier - Duration: - Only to be used after 1 year - First episode (acute episode, partial remission or full remission) - Multiple episodes (acute episode, partial remission or full remission) - Continuous - Unspecified - Catatonia - Severity ## Schizoaffective Disorder - Symptoms - A. Major mood episode (manic or depressive) concurrent with Criterion A of schizophrenia - B. Delusions or hallucinations for 2 weeks without mood symptoms (ie. exclude affective disturbance with psychotic features) during lifetime - C. Major mood episodes for majority of duration during active and residual portions - Exclusions - D. Not organic or substance-induced - Specifier - Types: bipolar (manic) or depressive - Catatonia - Duration: - Only to be used after 1 year - First episode (acute episode, partial remission or full remission) - Multiple episodes (acute episode, partial remission or full remission) - Continuous - Unspecified - Severity ## Substance/Medication-Induced Psychotic Disorder - Symptoms - A. Delusions and/or hallucinations - Cause - B. Criterion A started after intoxication or withdrawal of substance or medication (latter must be able to cause such symptoms) - Exclusions - C. Not primary psychotic disorder (ie. symptoms before substance use, symptoms persist )

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