ICD-10-CM Code F43.12

Post-traumatic stress disorder, chronic

Version 2021 Billable Code

Valid for Submission

F43.12 is a billable code used to specify a medical diagnosis of post-traumatic stress disorder, chronic. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code F43.12 might also be used to specify conditions or terms like chronic post-traumatic stress disorder, chronic post-traumatic stress disorder following military combat, chronic stress disorder, dream anxiety disorder, nightmares associated with chronic post-traumatic stress disorder, post-trauma response, etc

Short Description:Post-traumatic stress disorder, chronic
Long Description:Post-traumatic stress disorder, chronic

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code F43.12 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Chronic post-traumatic stress disorder
  • Chronic post-traumatic stress disorder following military combat
  • Chronic stress disorder
  • Dream anxiety disorder
  • Nightmares associated with chronic post-traumatic stress disorder
  • Post-trauma response
  • Posttraumatic stress disorder
  • Rape trauma syndrome
  • Rape trauma syndrome: compound reaction
  • Rape trauma syndrome: silent reaction

Convert F43.12 to ICD-9

  • 309.81 - Posttraumatic stress dis (Approximate Flag)

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
      • Reaction to severe stress, and adjustment disorders (F43)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

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 (Medical Encyclopedia)
  • Traumatic events and children (Medical Encyclopedia)

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