2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Adjustment Reaction 309.* >  2008 ICD-9-CM Diagnosis 309.81
Posttraumatic stress disorder On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date.
The 2009 version of ICD-9-CM 309.81 can be accessed here. - A class of traumatic stress disorders with symptoms that last more than one month. There are various forms of post-traumatic stress disorder, depending on the time of onset and the duration of these stress symptoms. In the acute form, the duration of the symptoms is between 1 to 3 months. In the chronic form, symptoms last more than 3 months. With delayed onset, symptoms develop more than 6 months after the traumatic event.
- 309.81 is a specific code that can be used to specify a diagnosis
- 309.81 contains 12 index entries
- View the ICD-9-CM Volume 1 309.* hierarchy
309.81 also known as:- Chronic posttraumatic stress disorder
- Concentration camp syndrome
- Posttraumatic stress disorder NOS
- Post-Traumatic Stress Disorder (PTSD)
309.81 excludes: - acute stress disorder (308.3)
- posttraumatic brain syndrome:
Index entries containing 309.81:- Disorder - see also Disease
- post-traumatic stress (PTSD)
 309.81
- posttraumatic stress 309.81
- acute 309.81
- brief 309.81
- chronic 309.81
- stress (see also Reaction, stress, acute) 308.3
- posttraumatic
- acute 309.81
- brief 309.81
- chronic (motor or vocal) 309.81
Neurosis, neurotic 300.9- posttraumatic (acute) (situational) 309.81
- chronic 309.81
Post-Traumatic Stress Disorder (PTSD) 309.81
PTSD (Post-Traumatic Stress Disorder) 309.81
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