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2007 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.* >

2007 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 Therefore, this code may be out of date.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