Phobic anxiety disorders
In Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48), chapter 5: Mental, Behavioral and Neurodevelopmental Disorders
23 billable codes under F40: none are a CC or MCC; none map to an HCC.
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers psychological pain disorders, substance use, abuse, dependence and remission, factitious disorder including Munchausen by proxy, and dementia severity.
- Pain disorders related to psychological factors (page 43)
- Mental and behavioral disorders due to psychoactive substance use (page 43)
- Factitious Disorder (page 44)
- Dementia (page 45)
All codes under F40
F40 can't be used on a claim. Pick a billable code below; grey headings group them.
- F40.0Agoraphobia
- F40.00Agoraphobia, unspecified
- F40.01Agoraphobia with panic disorder
- F40.02Agoraphobia without panic disorder
- F40.1Social phobias
- F40.10Social phobia, unspecified
- F40.11Social phobia, generalized
- F40.2Specific (isolated) phobias
- F40.21Animal type phobia
- F40.210Arachnophobia
- F40.218Other animal type phobia
- F40.22Natural environment type phobia
- F40.220Fear of thunderstorms
- F40.228Other natural environment type phobia
- F40.23Blood, injection, injury type phobia
- F40.230Fear of blood
- F40.231Fear of injections and transfusions
- F40.232Fear of other medical care
- F40.233Fear of injury
- F40.24Situational type phobia
- F40.240Claustrophobia
- F40.241Acrophobia
- F40.242Fear of bridges
- F40.243Fear of flying
- F40.248Other situational type phobia
- F40.29Other specified phobia
- F40.290Androphobia
- F40.291Gynephobia
- F40.298Other specified phobia
- F40.8Other phobic anxiety disorders
- F40.9Phobic anxiety disorder, unspecified
F40 MS-DRG
As the principal diagnosis, all 23 billable codes under F40 group to MS-DRG 882 (v44.0).
Other codes that refer to F40
Notes on these codes point to F40.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Phobias
A phobia is a type of anxiety disorder. It is a strong, irrational fear of something that poses little or no real danger. There are many specific phobias. Acrophobia is a fear of heights. Agoraphobia is a fear of public places, and claustrophobia is a fear of closed-in places. If you become anxious and extremely self-conscious in everyday social situations, you could have a social phobia. Other common phobias involve tunnels, highway driving, water, flying, animals and blood.
Read more about phobias on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.