F40.2 – Specific (isolated) phobias

ICD-10-CM 2027 diagnosis code · Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders

Non-billable header

ICD-10-CM code F40.2

Code: F40.2 (claims format: F402)
Description: Specific (isolated) phobias
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
Parent codes: F40

Billable codes under F40.2

F40.2 is a header code and cannot be used on claims. Choose the most specific code:

F40.21 – Animal type phobiaHeader (more codes below)
F40.22 – Natural environment type phobiaHeader (more codes below)
F40.23 – Blood, injection, injury type phobiaHeader (more codes below)
F40.24 – Situational type phobiaHeader (more codes below)
F40.29 – Other specified phobiaHeader (more codes below)

Notes for F40.2

Excludes2 (not included here):

dysmorphophobia (nondelusional) (F45.22)
nosophobia (F45.22)

Related codes in F40

F40.0 – AgoraphobiaHeader
F40.1 – Social phobiasHeader
F40.8 – Other phobic anxiety disordersBillable
F40.9 – Phobic anxiety disorder, unspecifiedBillable

Frequently asked questions

What is ICD-10 code F40.2?

F40.2 is the ICD-10-CM code for specific (isolated) phobias, in the block F40-F48 (Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders).

Is F40.2 a billable code?

No. F40.2 is a header code with more specific child codes; report one of the billable codes listed above.

What category does F40.2 belong to?

It belongs to category F40 – Phobic anxiety disorders.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.