in the DSM-IV-TR, a sub-type of schizophrenia wherein the person shows prominent psychotic aspects, like delusions, hallucinations, grossly disordered actions, or disordered thinking, but doesn’t satisfy the standards for any of the other sub-types of the disorder. The DSM-lll denotation was undistinguishable form schizophrenic disorder.
UNDIFFERENTIATED SCHIZOPHRENIA: “The patient has been diagnosed with undifferentiated schizophrenia.”