The undifferentiated subtype is diagnosed when individuals exhibit general symptoms of schizophrenia, but do not meet specific diagnostic criteria for another subtype. Individuals with the undifferentiated subtypes may have symptoms that fall into multiple categories of other subtypes. For example, a person may have disorganized thinking, paranoia, hallucinations, low energy, and cognitive deficits.
Sometimes people that are diagnosed with the undifferentiated subtype have symptoms that fluctuate over a period of time. For example, they may experience symptoms that fit the paranoid subtype for awhile, then they may experience symptoms that better fit the disorganized subtype for a period of time. When the set of symptoms is difficult to classify, “undifferentiated” is typically diagnosed.
Some have used the term “mixed clinical syndrome” to describe this diagnosis because there is essentially a “mix” of symptoms.
- General schizophrenia symptoms
- Mixed symptoms
- Non-specific symptoms
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.