2024 ICD-10-CM Diagnosis Code F40.9
Phobic anxiety disorder, unspecified
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acute vestibular syndrome
- Acute vestibular syndrome due to anxiety and fear
- Anxiety and fear
- Fears delivery procedure
- Insomnia disorder related to another mental disorder
- Insomnia due to anxiety and fear
- Phobic disorder
- Prenatal finding
- Reduced level of fear
- Specific fear
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Phobia NOS
- Phobic state NOS
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Disorder (of) - See Also: Disease;
- - Fear complex or reaction - F40.9
Convert to ICD-9-CM Code
|Source ICD-10-CM Code||Target ICD-9-CM Code|
|F40.9||300.20 - Phobia NOS|
|Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.|
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.
People with phobias try to avoid what they are afraid of. If they cannot, they may experience:
- Panic and fear
- Rapid heartbeat
- Shortness of breath
- A strong desire to get away
Phobias usually start in children or teens, and continue into adulthood. The causes of specific phobias are not known, but they sometimes run in families.
Treatment helps most people with phobias. Options include medicines, therapy or both.
NIH: National Institute of Mental Health
[Learn More in MedlinePlus]
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.