Schizotypal disorder is characterized by an enduring pattern (i.e., characteristic of the person’s functioning over a period of at least several years) of eccentricities in behavior, appearance and speech, accompanied by cognitive and perceptual distortions, unusual beliefs, and discomfort with— and often reduced capacity for— interpersonal relationships. Symptoms may include constricted or inappropriate affect and anhedonia (negative schizotypy). Paranoid ideas, ideas of reference, or other psychotic symptoms, including hallucinations in any modality, may occur (positive schizotypy), but are not of sufficient intensity or duration to meet the diagnostic requirements of schizophrenia, schizoaffective disorder, or delusional disorder. The symptoms cause distress or impairment in personal, family, social, educational, occupational, or other important areas of functioning.
Symptoms are present continuously or episodically for at least 2 years, symptoms cause distress or impairment. Symptom qualifiers can be post coordinated with this category.