2022 ICD-10-CM Code F43.12

Post-traumatic stress disorder, chronic

Version 2021

Valid for Submission

ICD-10:F43.12
Short Description:Post-traumatic stress disorder, chronic
Long Description:Post-traumatic stress disorder, chronic

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)

F43.12 is a billable diagnosis code used to specify a medical diagnosis of post-traumatic stress disorder, chronic. The code F43.12 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 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.

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:

Approximate Synonyms

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

Convert F43.12 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code F43.12 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Post-Traumatic Stress Disorder

What is post-traumatic stress disorder (PTSD)?

Post-traumatic stress disorder (PTSD) is a mental health disorder that some people develop after they experience or see a traumatic event. The traumatic event may be life-threatening, such as combat, a natural disaster, a car accident, or sexual assault. But sometimes the event is not necessarily a dangerous one. For example, the sudden, unexpected death of a loved one can also cause PTSD.

It's normal to feel afraid during and after a traumatic situation. The fear triggers a "fight-or-flight" response. This is your body's way of helping to protect itself from possible harm. It causes changes in your body such as the release of certain hormones and increases in alertness, blood pressure, heart rate, and breathing.

In time, most people recover from this naturally. But people with PTSD don't feel better. They feel stressed and frightened long after the trauma is over. In some cases, the PTSD symptoms may start later on. They might also come and go over time.

What causes post-traumatic stress disorder (PTSD)?

Researchers don't know why some people get PTSD and others don't. Genetics, neurobiology, risk factors, and personal factors may affect whether you get PTSD after a traumatic event.

Who is at risk for post-traumatic stress disorder (PTSD)?

You can develop PTSD at any age. Many risk factors play a part in whether you will develop PTSD. They include

What are the symptoms of post-traumatic stress disorder (PTSD)?

There are four types of PTSD symptoms, but they may not be the same for everyone. Each person experiences symptoms in their own way. The types are

The symptoms usually start soon after the traumatic event. But sometimes they may not appear until months or years later. They also may come and go over many years.

If your symptoms last longer than four weeks, cause you great distress, or interfere with your work or home life, you might have PTSD.

How is post-traumatic stress disorder (PTSD) diagnosed?

A health care provider who has experience helping people with mental illnesses can diagnose PTSD. The provider will do a mental health screening and may also do a physical exam. To get a diagnosis of PTSD, you must have all of these symptoms for at least one month:

What are the treatments for post-traumatic stress disorder (PTSD)?

The main treatments for PTSD are talk therapy, medicines, or both. PTSD affects people differently, so a treatment that works for one person may not work for another. If you have PTSD, you need to work with a mental health professional to find the best treatment for your symptoms.

Can post-traumatic stress disorder (PTSD) be prevented?

There are certain factors that can help reduce the risk of developing PTSD. These are known as resilience factors, and they include

Researchers are studying the importance of the resilience and risk factors for PTSD. They are also studying how genetics and neurobiology can affect the risk of PTSD. With more research, someday it may be possible to predict who is likely to develop PTSD. This could also help in finding ways to prevent it.

NIH: National Institute of Mental Health


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Code History

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