ICD-10-CM Code F40.9

Phobic anxiety disorder, unspecified

Version 2020 Billable Code

Valid for Submission

F40.9 is a billable code used to specify a medical diagnosis of phobic anxiety disorder, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code F40.9 might also be used to specify conditions or terms like anxiety and fear, fears delivery procedure, insomnia disorder related to another mental disorder, insomnia due to anxiety and fear, phobia, phobic disorder, etc

ICD-10:F40.9
Short Description:Phobic anxiety disorder, unspecified
Long Description:Phobic anxiety disorder, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code F40.9:

Inclusion Terms

Inclusion 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

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code F40.9 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Anxiety and fear
  • Fears delivery procedure
  • Insomnia disorder related to another mental disorder
  • Insomnia due to anxiety and fear
  • Phobia
  • Phobic disorder
  • Prenatal finding
  • Specific fear
  • Terrified

Convert F40.9 to ICD-9

  • 300.20 - Phobia NOS (Approximate Flag)

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
      • Phobic anxiety disorders (F40)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


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.

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


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