F43.11 ICD-10-CM Code: Post-traumatic stress disorder, acute

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

F43.11

Post-traumatic stress disorder, acute

ICD-10-CM diagnosis code · United States clinical modification

Where F43.11 sits

  1. 1

    Chapter 5

    Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

  2. 2

    Section

    Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

  3. 3

    Category F43

    Reaction to severe stress, and adjustment disorders

  4. 4

    Subcategory F43.1

    Post-traumatic stress disorder (PTSD)

  5. 5

    Code F43.11

    Post-traumatic stress disorder, acute

Notes for this code

Inclusion terms

No inclusion terms are listed for F43.11.

Code first

No “code first” instruction is listed for F43.11.

Use additional code

No “use additional code” instruction is listed for F43.11.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for F43.11.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for F43.11.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code F43.11 mean?

F43.11 is the FY 2027 U.S. ICD-10-CM code for “Post-traumatic stress disorder, acute.”

Is F43.11 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, F43.11 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is F43.11 located in ICD-10-CM?

F43.11 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48) (F40–F48), under category F43, Reaction to severe stress, and adjustment disorders and subcategory F43.1, Post-traumatic stress disorder (PTSD).

What coding notes are listed for F43.11?

No inclusion terms are listed for F43.11 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.