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.

No additional coding notes for this code.

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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