Besides Schizophrenia, what are other types of psychotic disorders?

Other types of psychotic disorders with their own diagnosis include:

• Substance/Medication-Induced Psychotic Disorder
• Psychotic Disorder Due to Another Medical Condition
• Catatonia Associated with Another Mental Disorder
• Catatonic Disorder Due to Another Medical Condition
• Unspecified Catatonia
• Other specified Schizophrenia Spectrum and Other Psychotic Disorder
• Unspecified Schizophrenia Spectrum and Other Psychotic Disorder

What is Catatonia?

Catatonia is abnormal movement and behavior arising from a  disturbed mental state. It may involve repetitive or purposeless overactivity. Behaviors associated with catatonia include:

• Stupor
• Catalepsy (trance or seizure with a loss of sensation and consciousness accompanied by rigidity of the body)
• Mutism (little or no verbal response)
• Negativism (opposition or no response to instructions or external stimuli)
• Posturing (bizarre or inappropriate body position or attitude for an extended period of time)
• Mannerism (odd, circumstantial caricature of normal actions)
• Stereotypy (repetitive, frequent, non-goal-directed movements)
• Agitation, not influenced by external stimuli
• Grimacing
• Mimicking another’s speech
• Mimicking another’s movements

Can medications and illicit drugs cause a psychotic disorder?

Yes. A diagnosis of “substance/medication-induced psychotic disorder” may be given to a person who experiences delusions and/or hallucinations soon after substance intoxication or withdrawal, or after exposure to a medication. The substance or medication must be capable of producing delusions and/or hallucinations, and the disturbance cannot be better explained by another psychotic disorder. A diagnosis of substance/medication-induced psychotic disorder requires that the drug effects cause significant distress or impairment in social, occupational, or other important areas of functioning.

Drugs that may cause delusions or hallucinations and have their own diagnostic coding for this psychotic disorder include alcohol, cannabis, phencyclidine, inhalants, sedatives, hypnotics, anxiolytics, amphetamines, cocaine, another hallucinogen, or other known or unknown substance.