Post Traumatic Stress Disorder (World Health Organisation Tenth Revision of the International Classification of Diseases (ICD 10), F43.1)
The criteria laid out by ICD 10 are as follows:
It arises as a delayed or protracted response to a stressful event or situation of an exceptionally threatening or catastrophic nature, which is likely to cause pervasive distress in almost anyone.
The diagnosis is made when there is evidence that the symptoms arose within 6 months of the traumatic event, and a probable diagnosis can be made if the symptoms arose greater than 6 months after the event(s), so long as the manifestation is typical.
The presence of the following is required:
1. A trauma of an exceptionally threatening or catastrophic nature, which is likely to cause pervasive distress in almost anyone.
2. Flashbacks (repeated reliving of the trauma in intrusive memories, daytime imagery or dreams).The following are often present but not essential for diagnosis
3. A persistent sense of numbness.
4. Detachment from others.
5. Unresponsiveness to surroundings
6. Anhedonia (loss of pleasure in life)
7. Avoidance of activities or surroundings reminiscent of the trauma.
8. Fear and avoidance of cues that trigger memories.
9. Panic attacks or aggression following triggers.
10. Autonomic arousal
12. Enhanced startle response
14. Anxiety and depression are commonly associated features.
15. Excessive use of drugs and alcohol.
16. Changes in personality.