F43.89 – Other reactions to severe stress
ICD-10-CM 2027 diagnosis code · Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
- Code
F43.89(claims format:F4389)- Description
- Other reactions to severe stress
- 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 › F43.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
F43.8 – Other reactions to severe stress
- Other specified trauma and stressor-related disorder
Index terms for F43.89
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in F43.8
Frequently asked questions
What is ICD-10 code F43.89?
F43.89 is the ICD-10-CM code for other reactions to severe stress, in the block F40-F48 (Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders).
Is F43.89 a billable code?
Yes. F43.89 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does F43.89 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.