F40
⚠ Non-billable
Phobic anxiety disorders
ICD-10-CM · FY2026 · Mental, Behavioral and Neurodevelopmental Disorders
Code
F40
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Mental, Behavioral and Neurodevelopmental Disorders
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code F40?
ICD-10-CM code F40 represents Phobic anxiety disorders. It is a non-billable header code requiring a more specific subcategory in the Mental, Behavioral and Neurodevelopmental Disorders chapter, effective October 1, 2025 – September 30, 2026.
Is F40 billable?
No. F40 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is F40 in?
F40 belongs to the Mental, Behavioral and Neurodevelopmental Disorders chapter (F01–F99) of ICD-10-CM.
Related codes in the F40 category
F40.0
Agoraphobia
Non-billable
F40.1
Social phobias
Non-billable
F40.2
Specific (isolated) phobias
Non-billable
F40.8
Other phobic anxiety disorders
Billable
F40.9
Phobic anxiety disorder, unspecified
Billable
F40.00
Agoraphobia, unspecified
Billable
F40.01
Agoraphobia with panic disorder
Billable
F40.02
Agoraphobia without panic disorder
Billable
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