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F43.8

Non-billable

Other reactions to severe stress

F43.8 is the ICD-10-CM code for Other reactions to severe stress. It is a non-billable category code — use a more specific child code such as F43.81 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Parent
F43
Subcodes
2
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

Includes

  • •Other specified trauma and stressor-related disorder

Frequently asked questions

What is ICD-10 code F43.8?
F43.8 is the ICD-10-CM code for "Other reactions to severe stress". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F43.8 a billable code?
No — F43.8 is a non-billable header code. Use a more specific child code (such as F43.81) for billing.
What are the subcodes of F43.8?
F43.8 has 2 more specific child codes, including F43.81, F43.89.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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