ICD-10 Diagnosis Code Z86.51

Personal history of combat and operational stress reaction

Diagnosis Code Z86.51

ICD-10: Z86.51
Short Description: Personal history of combat and operational stress reaction
Long Description: Personal history of combat and operational stress reaction
This is the 2017 version of the ICD-10-CM diagnosis code Z86.51


Code Classification
  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Personal history of certain other diseases (Z86)

Information for Patients


Post-Traumatic Stress Disorder

Also called: PTSD

Post-traumatic stress disorder (PTSD) is a real illness. You can get PTSD after living through or seeing a traumatic event, such as war, a hurricane, sexual assault, physical abuse, or a bad accident. PTSD makes you feel stressed and afraid after the danger is over. It affects your life and the people around you.

PTSD can cause problems like

  • Flashbacks, or feeling like the event is happening again
  • Trouble sleeping or nightmares
  • Feeling alone
  • Angry outbursts
  • Feeling worried, guilty, or sad

PTSD starts at different times for different people. Signs of PTSD may start soon after a frightening event and then continue. Other people develop new or more severe signs months or even years later. PTSD can happen to anyone, even children.

Treatment may include talk therapy, medicines, or both. Treatment might take 6 to 12 weeks. For some people, it takes longer.

NIH: National Institute of Mental Health

  • Post-traumatic stress disorder
  • Traumatic events and children


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