ICD-10-CM FY2027 diagnosis code

F40: Phobic anxiety disorders

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

F40 groups related diagnoses under phobic anxiety disorders. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under F40

F40 questions

Is F40 a billable code?

No. F40 is a header code that groups 23 more specific codes. Use one of the billable codes listed on this page instead.

What does F40 mean?

F40 is the ICD-10-CM code for Phobic anxiety disorders. It is in chapter 5, Mental, behavioral and neurodevelopmental disorders (F01-F99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.