Schizophrenia Criterion A p312

2 or more characteristic symptoms;

• each are present for a significant portion of time during 1mth period (or less if successfully treated)
• delusions
• hallucinations
• disorganized speech
• grossly disorganized or catatonic behavior
• negative symptoms: affective flattening, alogia 

Social/occupational dysfunction:

• For a significant portion of time since the onset of the disturbance, 1 or more major functioning areas such as work, school, interpersonal relations, or self-care are markedly below the level achieved prior to the onset
• or when  the onset  is in childhood or adolescence , failure to achieve expected level of interpersonal, academic, or ocupational functioning.

Duration:

• Continuous signs of the disturbance persist for at least 6mths
• 6mth period must include at least 1mth of symptoms (or less if successfully treated) that meet criteria A.
• and may include periods of prodromal or residual symptoms
• during prodromal/residual periods, the signs of the disturbancemay be manifested by only negative symptoms
• or 2 or more symptoms listed in Criteria A present in attenuated form (odd beliefs, unusual perceptual experience)

Schizoaffective and Mood Disorder (with Psychotic features)exclusion:

The above have been ruled out b/c either

1. No Major depressive, manic, or mixed episodes have occurred concurrently with the active-phase symptoms; or

2. If mood episodes have occurred during the active-phase symptoms, their total duration has been brief relative to the duration of the active and residual periods.

Substance/gmc exclusion:

The disturbance is not due to direct physiological effects of a substance or gmc.

Relationship to Pervasive Developmental Disorder:

If there is a hx of Autistic Disorder, the additional dx of Schizophrenia is made only if prominent delusions or hallucinations are also present for at least 1mth.

• Episodic with interepisode Residual symptoms: (episodes are defined by the reemergence of prominent psychotic symptoms); also specify if With Prominent Negative symptoms
• Episodic With No Interepisode Residual Symptoms
• Continous (prominent psychotic symptoms are present throughout the period of observation); also specify if With Prominent Negative Symptoms
• Single episode in partial remission; also specify if With Prominent  Negative Symptoms
• Single episode in full remission
• Other or Unspecified pattern

Paranoid type:

1. criterion A: Preoccupation with 1 or more delusions or frequent auditory hallucinations
2. criterion B: None of the following is prominent: disorganized speech, disorganized or catatonic behavior, or flat or inappropriate affect

Disorganized type:

criterion A: All of the following  are prominent:

• disorganized speech, behavior
• flat or inappropriate affect

criterion B: The criteria are not met for Catatonic type

Undifferentiated type:

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

Catatonic type: at least 2 of the following

• motoric immobility (muscle rigidity) evident by waxy flexibility(catalepsy)
• excessive motor activity
• extreme negativism - resistance to movement
• peculiar voluntary movement/posturing
• echolalia -parrot-like repetition of word or phrase

Residual type:

• There is continuing evidence of the disturbancemay as indicated by the presence of negative symptoms
• or 2 or more symptoms listed in Criteria A present in attenuated form (odd beliefs, unusual perceptual experience)

1. criterion A:

Criteria A, D, and E of Schizophrenia are met

2. criterion B:

• An episode of the disorder (including prodromal, active, and residual phases) lasts at least 1mth but less than 6mths.
• (When the dx must be made without waiting for recovery, it should be qualified as "Provisional") 

Without Good Prognostic Features

With Good Prognostic Features: as evidenced by 2 or more  of the following:

1. onset of prominent psychotic symptoms within 4wks of the 1st noticeable change in usual behavior or functioning
2. confusion or perplexity at the height of the psychotic episode
3. good premorbid social and occupational functioning
4. absence of blunted or flat affect 

criterion A:

An uninterrupted period of illness during which at some time, there is either a Major Depressive (depressed mood), manic, mixed episodes concurrent with symptoms that meet criteria A for Schizophrenia

criterion B:

During the same period of illnessthere have been delusions and hallucinations for at least 2wks in the absence of prominent mood symptoms

criterion C:

Symptoms that meet criteria for a mood episode are present for a substantial portion of the total duration of the active and residual periods of the illness.

criterion D:

The disturbance is not due to the direct physiological effects of a substance or gmc.

1. Bipolar type:

If the disturbance includes a manic or a mixed episode (or a manic or a mixed episode and Major Depressive episodes

2. Depressive type:

If the disturbance only include Major Depressive episodes