Acute stress reaction

📋Clinical Description

This code represents a transient and severe emotional, cognitive, and behavioral disturbance occurring immediately after exposure to an exceptionally stressful event. Symptoms typically include a state of daze, disorientation, anxiety, and withdrawal, resolving within hours or days. It is a normal, albeit intense, reaction to an overwhelming stressor, not a pre-existing mental health condition.

🎯When to Use

Use this code when documentation clearly indicates a sudden onset of severe psychological distress directly following a traumatic event, such as an accident, natural disaster, or violent assault. The symptoms must be acute and time-limited, typically resolving within 48 hours. Documentation should specify the stressor and the immediate, transient nature of the reaction.

💡Coding Tips

Differentiate from Post-Traumatic Stress Disorder (PTSD) (F43.1-) and Adjustment Disorders (F43.2-) which involve longer-lasting symptoms or delayed onset.
Ensure the documentation specifies the acute and transient nature of the reaction, typically resolving within days.
Consider an external cause code (V00-Y99) to describe the traumatic event, if applicable, as a secondary diagnosis.

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Clinical Notes

Inclusion Terms

Acute crisis reaction
Acute reaction to stress
Combat and operational stress reaction
Combat fatigue
Crisis state
Psychic shock

Code Hierarchy

▲F43Reaction to severe stress, and adjustment disorders

F43.0(current)

Crosswalks

308.2ApproxICD-9 308.1ApproxICD-9 308.9ApproxICD-9 308.4ApproxICD-9 308.9ApproxICD-9 308.3ApproxICD-9