ICD-10-CM Code F41.9

Anxiety disorder, unspecified

Version 2020 Billable Code

Valid for Submission

F41.9 is a billable code used to specify a medical diagnosis of anxiety disorder, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code F41.9 might also be used to specify conditions or terms like anxiety, anxiety about behavior or performance, anxiety about resuming sexual relations, anxiety disorder, anxiety disorder in mother complicating childbirth, anxiety in pregnancy, etc

Short Description:Anxiety disorder, unspecified
Long Description: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 F41.9:

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.
  • Anxiety 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 F41.9 are found in the index:


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

  • Anxiety
  • Anxiety about behavior or performance
  • Anxiety about resuming sexual relations
  • Anxiety disorder
  • Anxiety disorder in mother complicating childbirth
  • Anxiety in pregnancy
  • Chronic anxiety
  • Level of anxiety
  • Mental disorder in mother complicating childbirth
  • Moderate anxiety
  • Psychological disorder during pregnancy
  • Recurrent anxiety

Clinical Information

  • PHOBIA SOCIAL-. anxiety disorder characterized by the persistent and irrational fear anxiety or avoidance of social or performance situations.
  • ANXIETY DISORDERS-. persistent and disabling anxiety.
  • ANXIETY SEPARATION-. anxiety experienced by an individual upon separation from a person or object of particular significance to the individual.

Convert F41.9 to ICD-9

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
      • Other anxiety disorders (F41)

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


Fear and anxiety are part of life. You may feel anxious before you take a test or walk down a dark street. This kind of anxiety is useful - it can make you more alert or careful. It usually ends soon after you are out of the situation that caused it. But for millions of people in the United States, the anxiety does not go away, and gets worse over time. They may have chest pains or nightmares. They may even be afraid to leave home. These people have anxiety disorders. Types include

  • Panic disorder
  • Obsessive-compulsive disorder
  • Post-traumatic stress disorder
  • Phobias
  • Generalized anxiety disorder

Treatment can involve medicines, therapy or both.

NIH: National Institute of Mental Health

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