F43.9
BillableReaction to severe stress, unspecified
F43.9 is the ICD-10-CM code for Reaction to severe stress, unspecified. It is a billable, specific code valid for reimbursement.
F01-F99 Mental, Behavioral and Neurodevelopmental disorders
What this means — in plain language
MedlinePlus · NIHWhat is stress? Stress is how your brain and body respond to a challenge or demand. When you are stressed, your body releases certain hormones . Hormones are chemicals that travel in your bloodstream and control how different parts of your body work. The hormones that are released when you are stressed make you alert and ready to act. They can raise your blood pressure, heart rate, and blood glucose (blood sugar)…
Read more about Stress at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Trauma and stressor-related disorder, NOS
- •Unspecified trauma and stressor-related disorder
Medications indicated for this condition
FDA labeling- Sertraline›
- Apil Mel, Baptisia, Baryta Carb, Hamamelis, Kali Brom, Kali Phos, Lachesis, Lilium, Petroleum, Phosphoricum Ac, Spigelia Anth, Sulphur, Veratrum VirStandardized Insect Venom Allergenic Extract [EPC]›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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