ICD-10 Code F43.24 – Adjustment disorder with disturbance of conduct (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F43.24 – Adjustment disorder with disturbance of conduct
What it is
F43.24 identifies an adjustment disorder in which a clear stressor is followed by emotional or behavioral symptoms, with disturbance of conduct as the main feature. Use it when the reaction is out of proportion and causes impairment.
Clinical signs
Typical findings include rule-breaking, aggression, irritability, or other conduct problems after an identifiable stressor. Clinical features vary; refer to documentation for the specific behavioral changes and timing.
When to use this code
Use this code when the record documents an adjustment disorder and the clinician states that conduct disturbance is the dominant presentation. The stressor should be identifiable, such as a family change, school problem, or other life event. You should also confirm that the symptoms are not better explained by another mental disorder.
Do not use for
Do not use F43.24 for conduct disorder, oppositional defiant disorder, or ordinary behavior problems without an adjustment reaction. Check documentation if the record does not clearly link the conduct symptoms to a recent stressor.
Coding tip
Code the documented stressor and any associated symptoms separately only when the record supports them.