F40

Non-billable

Phobic anxiety disorders

F40 is the ICD-10-CM code for Phobic anxiety disorders. It is a non-billable category code — use a more specific child code such as F40.0 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Subcodes
5
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

A group of disorders in which anxiety is evoked only, or predominantly, in certain well-defined situations that are not currently dangerous. As a result these situations are characteristically avoided or endured with dread. The patient's concern may be focused on individual symptoms like palpitations or feeling faint and is often associated with secondary fears of dying, losing control, or going mad. Contemplating entry to the phobic situation usually generates anticipatory anxiety. Phobic anxiety and depression often coexist. Whether two diagnoses, phobic anxiety and depressive episode, are needed, or only one, is determined by the time course of the two conditions and by therapeutic considerations at the time of consultation.

What this means — in plain language

MedlinePlus · NIH

A phobia is a type of anxiety disorder . It is a strong, irrational fear of something that poses little or no real danger. There are many specific phobias. Acrophobia is a fear of heights. Agoraphobia is a fear of public places, and claustrophobia is a fear of closed-in places. If you become anxious and extremely self-conscious in everyday social situations, you could have a social phobia. Other common phobias…

Read more about Phobias at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Medications indicated for this condition

FDA labeling

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 · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code F40?
F40 is the ICD-10-CM code for "Phobic anxiety disorders". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F40 a billable code?
No — F40 is a non-billable header code. Use a more specific child code (such as F40.0) for billing.
What are the subcodes of F40?
F40 has 5 more specific child codes, including F40.0, F40.1, F40.2.

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

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