6. The disturbance causes clinically significant distress or impairment in social, occupational, or other important areas of functioning or impairs the individual’s ability to pursue some necessary task, such as obtaining necessary assistance or mobilising personal resources by telling family members about the traumatic experience.
7. The disturbance lasts for a minimum of two days and a maximum of four weeks and occurs within four weeks of the traumatic event.
8. The disturbance is not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication) or general medical condition, is not better accounted for by Brief Psychotic Disorder, and is not merely an exacerbation of a preexisting Axis I or Axis II disorder.

• American Psychiatric Association. (1994). Diagnostic and Statistical Manual of Mental Disorders, (4th ed.) Washington, DC: Author. pp. 431-432.

Note: There are no revisions of this criteria list in the DSM-IV-TR (2000).