F43.11 – Post-traumatic stress disorder, acute

ICD-10-CM 2027 diagnosis code · Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders

Billable code

ICD-10-CM code F43.11

Code: F43.11 (claims format: F4311)
Description: Post-traumatic stress disorder, acute
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
Parent codes: F43 › F43.1

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

F43.1 – Post-traumatic stress disorder (PTSD)

Applicable to:

Traumatic neurosis

Index terms for F43.11

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in F43.1

Frequently asked questions

What is ICD-10 code F43.11?

F43.11 is the ICD-10-CM code for post-traumatic stress disorder, acute, in the block F40-F48 (Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders).

Is F43.11 a billable code?

Yes. F43.11 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does F43.11 belong to?

It belongs to category F43 – Reaction to severe stress, and adjustment disorders.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.