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==Classification Based on Subtypes==
==Classification Based on Subtypes==
*Historically, [[schizophrenia]] in the West was classified into simple, [[catatonia|catatonic]], hebephrenic (now known as [[Disorganized schizophrenia|disorganized]]), and [[Paranoid personality disorder|paranoid]].
*Historically, [[schizophrenia]] in the West was classified into simple, [[catatonia|catatonic]], hebephrenic (now known as [[Disorganized schizophrenia|disorganized]]), and [[Paranoid personality disorder|paranoid]].
*The [[Diagnostic and Statistical Manual of Mental Disorders|DSM- IV]] contains five sub-classifications of schizophrenia: Paranoid, disorganized, catatonic, undifferentiated and residual type, but, this classification has been eliminated due to their limited diagnostic stability, low reliability and poor validity.
*The [[Diagnostic and Statistical Manual of Mental Disorders|DSM- IV]] contains five sub-classifications of schizophrenia: Paranoid, disorganized, catatonic, undifferentiated and residual type, but, this classification has been eliminated due to their limited diagnostic stability, low reliability and poor validity.


*According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-V, to meet the criteria for [[diagnosis]] of [[schizophrenia]], the patient must have experienced at least 2 (or more) of the following [[symptoms]]:
*According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-V, to meet the criteria for [[diagnosis]] of [[schizophrenia]], the patient must have experienced at least 2 (or more) of the following [[symptoms]]:
Delusions
**Delusions
Hallucinations
**Hallucinations
Disorganized speech
**Disorganized speech
Disorganized or catatonic behavior
**Disorganized or catatonic behavior
Negative symptoms
**Negative symptoms
At least 1 of the symptoms must be the presence of delusions, hallucinations, or disorganized speech.
**At least 1 of the symptoms must be the presence of delusions, hallucinations, or disorganized speech.


*Continuous signs of the disturbance must persist for at least 6 months, during which the patient must experience at least 1 month of active symptoms (or less if successfully treated), with impairment in social, occupational and other significant areas of functioning. The symptoms are not attributable to any other psychiatric , medical or substance use disorder.
*Continuous signs of the disturbance must persist for at least 6 months, during which the patient must experience at least 1 month of active symptoms (or less if successfully treated), with impairment in social, occupational and other significant areas of functioning. The symptoms are not attributable to any other psychiatric , medical or substance use disorder.

Revision as of 15:46, 8 March 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Vindhya BellamKonda, M.B.B.S [2]

Classification Based on Subtypes

  • Historically, schizophrenia in the West was classified into simple, catatonic, hebephrenic (now known as disorganized), and paranoid.
  • The DSM- IV contains five sub-classifications of schizophrenia: Paranoid, disorganized, catatonic, undifferentiated and residual type, but, this classification has been eliminated due to their limited diagnostic stability, low reliability and poor validity.
  • According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-V, to meet the criteria for diagnosis of schizophrenia, the patient must have experienced at least 2 (or more) of the following symptoms:
    • Delusions
    • Hallucinations
    • Disorganized speech
    • Disorganized or catatonic behavior
    • Negative symptoms
    • At least 1 of the symptoms must be the presence of delusions, hallucinations, or disorganized speech.
  • Continuous signs of the disturbance must persist for at least 6 months, during which the patient must experience at least 1 month of active symptoms (or less if successfully treated), with impairment in social, occupational and other significant areas of functioning. The symptoms are not attributable to any other psychiatric , medical or substance use disorder.
  • If there is a history of autism spectrum disorder or a communication disorder of childhood onset, diagnosis of schizophrenia is made only if prominent delusions or hallucinations,in addition to the other required symptoms of schizophrenia, are also present for at least 1 month(or less if successfully treated)

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