F40 ICD-10-CM Code: Phobic anxiety disorders
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
F40Phobic anxiety disorders
ICD-10-CM diagnosis code · United States clinical modification
Where F40 sits
- 1
Chapter 5
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- 2
Section
Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
- 3
Category F40
Phobic anxiety disorders
- 4
Code F40
Phobic anxiety disorders
Codes under F40
F40 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for F40.
Code first
No “code first” instruction is listed for F40.
Use additional code
No “use additional code” instruction is listed for F40.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for F40.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for F40.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code F40 mean?
F40 is the FY 2027 U.S. ICD-10-CM code for “Phobic anxiety disorders.”
Is F40 a billable or specific ICD-10-CM code?
No. F40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is F40 located in ICD-10-CM?
F40 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48) (F40–F48), under category F40, Phobic anxiety disorders.
What coding notes are listed for F40?
No inclusion terms are listed for F40 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.