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F43.0

Billable

Acute stress reaction

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A temporary emotional and physical reaction that occurs immediately after experiencing or witnessing a traumatic or extremely stressful event, typically lasting from hours to a few days.

Coding Tips

  • •Document the specific stressor or traumatic event that triggered the acute stress reaction
  • •Distinguish from PTSD by noting the acute onset and short duration (usually resolves within days)

Code Hierarchy

└F43Reaction to severe stress, and adjustment disorders└F43.0Acute stress reaction
└F43.0Acute stress reaction

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