DSM-II

In DSM-II, this disorder is called Schizophrenia, chronic undifferentiated type

For more information, see Schizophrenia

This category is for patients who show mixed schizophrenic symptoms and who present definite schizophrenic thought, affect and behavior not classifiable under the other types of schizophrenia. It is distinguished from Schizoid personality.

DSM-III

For more information, see Schizophrenia

The essential features are prominent psychotic symptoms that cannot be classified in any category or that meet the criteria for more than one.

Diagnostic Criteria

A. A type of Schizophrenia in which there are: Prominent delusions, hallucinations, incoherence, or grossly disorganized behavior.

B. Does not meet the criteria for any of the previously listed types or meets the criteria for more than one.

DSM-IV

For more information, see Schizophrenia

The essential feature of the Undifferentiated Type of Schizophrenia is the presence of symptoms that meet Criterion A of Schizophrenia but that do not meet criteria for the Paranoid, Disorganized, or Catatonic Type.

Diagnostic Criteria

A type of Schizophrenia in which symptoms that meet Criterion A are present, but the criteria are not met for the Paranoid, Disorganized, or Catatonic Type.

DSM-5

See Schizophrenia

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