Version 2024

2024 ICD-10-CM Diagnosis Code F40.2

Specific (isolated) phobias

ICD-10-CM Code:
ICD-10 Code for:
Specific (isolated) phobias
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Mental and behavioural disorders
    • Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
      • Phobic anxiety disorders

F40.2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of specific (isolated) phobias. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Specific (isolated) phobias

Non-specific codes like F40.2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for specific (isolated) phobias:

  • F40.21 for Animal type phobia - NON-BILLABLE CODE

  • Use F40.210 for Arachnophobia - BILLABLE CODE

  • Use F40.218 for Other animal type phobia - BILLABLE CODE

  • F40.22 for Natural environment type phobia - NON-BILLABLE CODE

  • Use F40.220 for Fear of thunderstorms - BILLABLE CODE

  • Use F40.228 for Other natural environment type phobia - BILLABLE CODE

  • F40.23 for Blood, injection, injury type phobia - NON-BILLABLE CODE

  • Use F40.230 for Fear of blood - BILLABLE CODE

  • Use F40.231 for Fear of injections and transfusions - BILLABLE CODE

  • Use F40.232 for Fear of other medical care - BILLABLE CODE

  • Use F40.233 for Fear of injury - BILLABLE CODE

  • F40.24 for Situational type phobia - NON-BILLABLE CODE

  • Use F40.240 for Claustrophobia - BILLABLE CODE

  • Use F40.241 for Acrophobia - BILLABLE CODE

  • Use F40.242 for Fear of bridges - BILLABLE CODE

  • Use F40.243 for Fear of flying - BILLABLE CODE

  • Use F40.248 for Other situational type phobia - BILLABLE CODE

  • F40.29 for Other specified phobia - NON-BILLABLE CODE

  • Use F40.290 for Androphobia - BILLABLE CODE

  • Use F40.291 for Gynephobia - BILLABLE CODE

  • Use F40.298 for Other specified phobia - BILLABLE CODE

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.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Patient Education


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
  • Trembling
  • 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]

Code History

  • 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.