PTSD ICD-10: What F43.10, F43.11, and F43.12 Mean
June 8, 2026 | By Henry Davis
Searching for PTSD ICD-10 usually means you are trying to decode a chart note, insurance form, assessment summary, or search result that uses clinical shorthand. The main thing to know is simple: ICD-10-CM codes describe how a condition is recorded for health data and billing in the United States, while they do not replace a careful clinical evaluation. If you are looking up a code because your own symptoms feel familiar, an anonymous PTSD screening starting point can help you organize what you have noticed before you talk with a qualified professional.
The short answer: PTSD ICD-10 codes in ICD-10-CM
In current ICD-10-CM coding, PTSD sits in the F43 category, which covers reactions to severe stress and adjustment disorders. The broader PTSD family is F43.1, but the more specific billable codes commonly searched are:
| Code | Plain-English label |
|---|---|
| F43.10 | Post-traumatic stress disorder, unspecified |
| F43.11 | Post-traumatic stress disorder, acute |
| F43.12 | Post-traumatic stress disorder, chronic |
These labels come from ICD-10-CM, the U.S. clinical modification of ICD-10 used for morbidity coding. In everyday language, the dotted form is easier to read. In some official files, the same codes may appear without dots, such as F4310, because electronic code files often remove punctuation.
The code itself does not tell the whole story of a person. It does not explain the traumatic event, the symptom pattern, the level of distress, the support someone has, or whether symptoms are changing. It is a compact label used in a larger documentation system.
What F43.10, F43.11, and F43.12 mean in plain English
F43.10, often searched as PTSD unspecified ICD-10, means PTSD is recorded without specifying whether the presentation is acute or chronic. In practice, this may happen when timing, duration, or documentation is incomplete. It should not be read as "mild" or "not serious." Unspecified means the record does not provide that particular detail.
F43.11 is the ICD-10-CM code for acute PTSD. Searchers often ask about the difference between F43.10 and F43.11 because both can appear early in care. The difference is specificity: F43.11 points to an acute PTSD presentation, while F43.10 does not specify the timing category.
F43.12 is the ICD-10-CM code for chronic PTSD. People often search "PTSD chronic ICD-10" or "ICD-10 code for PTSD chronic" after seeing F43.12 in a record. Chronic does not mean hopeless, fixed, or untreatable. It means the PTSD label is being recorded with a chronic specifier in that coding system.
How ICD-10 coding connects with DSM-5-TR criteria and PCL-5 screening
Many searches combine terms like DSM-5-TR PTSD ICD-10-CM code, F43.10, and 309.81 because different systems appear together. DSM-5-TR is a clinical criteria framework. ICD-10-CM is a coding system used in U.S. health records and claims. Older or crosswalk-style references may also show 309.81 alongside F43.10, because 309.81 was the DSM-IV and ICD-9-CM style code historically associated with PTSD.
PTSD criteria usually involve exposure to a qualifying traumatic event, intrusive symptoms, avoidance, negative changes in mood or thinking, arousal and reactivity symptoms, duration, distress or impairment, and consideration of substances or other medical causes. Those criteria require clinical judgment. A code such as F43.10 does not prove how each criterion was assessed.
This is also where screening tools fit. The PCL-5 is a 20-item self-report measure aligned with DSM-5 PTSD symptoms. A PCL-5 based self-reflection tool can help you notice symptom patterns over the past month, but a screening result is still a starting point, not a final clinical label. It can be useful because it gives you language for questions such as: Which symptoms are strongest? How long have they been present? What parts of daily life are affected? What would I want a clinician to understand?
Related searches: complex PTSD, depression, anxiety, trauma unspecified, and history
Complex PTSD ICD-10 is a common search because people want a single code for c-PTSD or complex PTSD. In ICD-10-CM, there is not a separate, cleanly named complex PTSD code the way ICD-11 recognizes complex PTSD as its own category. In U.S. ICD-10-CM records, a professional may choose the code that best fits the documented clinical picture, which could be a PTSD code or another trauma-and-stressor-related code.
ICD-11 is different. WHO's ICD-11 includes PTSD as 6B40 and complex post-traumatic stress disorder as 6B41. That is one reason search results can look inconsistent: a page may be discussing global ICD-11 concepts, while an insurance form in the United States may still use ICD-10-CM codes.
Searches for "ICD-10 code for PTSD with depression and anxiety" also need care. PTSD, depression, and anxiety are not usually rolled into one universal PTSD code. If depression or anxiety is clinically documented as a separate condition, it may be coded separately using the appropriate depressive or anxiety disorder code. If the symptoms are part of another documented condition, the coding choice may differ.
"ICD-10 code for trauma unspecified" is another phrase that can mean several things. F43.9 is reaction to severe stress, unspecified, but that is not the same as saying someone has PTSD. Similarly, "Hx PTSD ICD-10" may point to Z86.59, personal history of other mental and behavioral disorders, when a record is describing history rather than current active symptoms. Context matters.
Why code lookups can feel confusing
PTSD ICD-10 searches often mix three different questions into one phrase. One question is "What does this code stand for?" Another is "Does this code describe what I am experiencing?" A third is "What should I do with this information?" The first question is usually answerable with a code table. The second and third need more context.
Codes are designed for records, reporting, and billing, not for self-understanding on their own. They compress a lot of professional documentation into a short label. A person living with PTSD may experience sleep disruption, intrusive memories, avoidance, irritability, emotional numbness, guilt, shame, relationship strain, or a reduced sense of safety. The code does not describe which of those experiences are present.
This is why an educational code guide should stay humble. It can tell you that F43.10 means post-traumatic stress disorder, unspecified. It cannot tell you whether your current experiences meet PTSD criteria, whether another condition is involved, or what support plan is right for you.
How to use PTSD ICD-10 information as a starting point
If you searched PTSD ICD-10 because you saw F43.10, F43.11, or F43.12 in a record, write down the code, where you saw it, and what question it raises. For example: "Does unspecified mean the timeline was unclear?" or "Why was chronic selected?" Bring that question to the clinician, billing office, or records department that created the document.
If you searched because your own symptoms feel familiar, a confidential PTSD symptom check may help you organize what you are noticing before a professional conversation. Keep the goal modest: observe patterns, name concerns, and decide whether more support would be useful.
A practical next step can be a short note with four columns: symptoms, timing, triggers or reminders, and impact on daily life. Add any code you are trying to understand in a separate line. This keeps coding information in its proper place: useful context, not the whole picture.
FAQ
What is the difference between F43.10 and F43.11?
F43.10 means post-traumatic stress disorder, unspecified. F43.11 means post-traumatic stress disorder, acute. The key difference is that F43.11 gives a timing specifier, while F43.10 leaves that detail unspecified. The code choice should be based on clinical documentation, not on a person's guess from symptoms alone.
What is the ICD-10 code for F43.12?
F43.12 is the ICD-10-CM code for post-traumatic stress disorder, chronic. In search language, people often write "PTSD chronic ICD-10" or "ICD-10 PTSD chronic" when they are looking for this code.
What does PTSD unspecified ICD-10 mean?
PTSD unspecified ICD-10 usually refers to F43.10. It means the record uses the PTSD code without specifying acute or chronic timing. It does not automatically describe severity, cause, prognosis, or treatment needs.
What is PTSD ICD-11?
In ICD-11, PTSD is coded as 6B40. Complex post-traumatic stress disorder is coded as 6B41. ICD-11 and ICD-10-CM are different systems, so a code from one should not be casually swapped into the other.
What is the ICD-10 code for PTSD with depression and anxiety?
There is not one universal ICD-10-CM code that means PTSD with depression and anxiety in every case. PTSD may be coded with F43.10, F43.11, or F43.12, while separately documented depressive or anxiety disorders may have their own codes. The exact coding depends on the clinical record.
What is the difference between F42.0 and F42.2?
F42 codes are obsessive-compulsive disorder codes, not PTSD codes. In current ICD-10-CM code descriptions, F42.2 is mixed obsessional thoughts and acts. If F42.0 appears in a search result, check which ICD version or country-specific system the page is using before comparing it with U.S. ICD-10-CM PTSD codes.