2021 ICD-10-CM Diagnosis Code F41.1

Generalized anxiety disorder

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • F41.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM F41.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of F41.1 - other international versions of ICD-10 F41.1 may differ.
Applicable To
  • Anxiety neurosis
  • Anxiety reaction
  • Anxiety state
  • Overanxious disorder
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (F41.1) and the excluded code together.
  • neurasthenia (
    ICD-10-CM Diagnosis Code F48.8

    Other specified nonpsychotic mental disorders

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Dhat syndrome
    • Neurasthenia
    • Occupational neurosis, including writer's cramp
    • Psychasthenia
    • Psychasthenic neurosis
    • Psychogenic syncope
    F48.8
    )
The following code(s) above F41.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to F41.1:
  • F01-F99
    2021 ICD-10-CM Range F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

    Includes
    • disorders of psychological development
    Type 2 Excludes
    • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
    Mental, Behavioral and Neurodevelopmental disorders
  • F41
    ICD-10-CM Diagnosis Code F41

    Other anxiety disorders

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • anxiety in:
    • acute stress reaction (F43.0)
    • transient adjustment reaction (F43.2)
    • neurasthenia (F48.8)
    • psychophysiologic disorders (F45.-)
    • separation anxiety (F93.0)
    Other anxiety disorders
Approximate Synonyms
  • Anxiety disorder, generalized
  • Generalised anxiety disorder
  • Overanxious disorder
  • Overanxious disorder of childhood
Clinical Information
  • A condition marked by excessive worry and feelings of fear, dread, and uneasiness that last six months or longer. Other symptoms of gad include being restless, being tired or irritable, muscle tension, not being able to concentrate or sleep well, shortness of breath, fast heartbeat, sweating, and dizziness.
  • An anxiety disorder characterized by excessive and difficult-to-control worry about a number of life situations. The worry is accompanied by restlessness, fatigue, inability to concentrate, irritability, muscle tension, and/or sleep disturbance and lasts for at least 6 months.
  • An anxiety disorder characterized by free-floating, persistent, and excessive worry for at least six months.
  • Apprehension of danger and dread accompanied by restlessness, tension, tachycardia, and dyspnea unattached to a clearly identifiable stimulus.
  • Apprehension or fear of impending actual or imagined danger, vulnerability, or uncertainty.
  • 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.
  • Feeling of distress or apprehension whose source is unknown
  • Feeling or emotion of dread, apprehension, and impending disaster but not disabling as with anxiety disorders.
  • Feelings of fear, dread, and uneasiness that may occur as a reaction to stress. A person with anxiety may sweat, feel restless and tense, and have a rapid heart beat. Extreme anxiety that happens often over time may be a sign of an anxiety disorder.
  • Term was discontinued in 1997. In 2000, the term was removed from all records containing it, and replaced with anxiety disorders, its postable counterpart.
  • Unpleasant, but not necessarily pathological, emotional state resulting from an unfounded or irrational perception of danger; compare with fear and clinical anxiety.
  • Vague uneasy feeling of discomfort or dread accompanied by an autonomic response (the source often nonspecific or unknown to the individual); a feeling of apprehension caused by anticipation of danger. It is an alerting signal that warns of impending danger and enables the individual to take measures to deal with threat.
ICD-10-CM F41.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 880 Acute adjustment reaction and psychosocial dysfunction

Convert F41.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to F41.1:
  • Anxiety F41.9
    ICD-10-CM Diagnosis Code F41.9

    Anxiety disorder, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Anxiety NOS
    • generalized F41.1
    • neurosis F41.1
    • reaction F41.1
    • state F41.1
  • Apprehension state F41.1
  • Disorder (of) - see also Disease
    • overanxious F41.1
    • anxiety F41.9
      ICD-10-CM Diagnosis Code F41.9

      Anxiety disorder, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Anxiety NOS
      • generalized F41.1
  • Neurosis, neurotic F48.9
    ICD-10-CM Diagnosis Code F48.9

    Nonpsychotic mental disorder, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Neurosis NOS
  • Psychoneurosis, psychoneurotic - see also Neurosis
    • anxiety F41.1 (state)
  • Reaction - see also Disorder
    • anxiety F41.1
  • State (of)
    • anxiety F41.1 (neurotic)
    • apprehension F41.1

ICD-10-CM Codes Adjacent To F41.1
F40.243 Fear of flying
F40.248 Other situational type phobia
F40.29 Other specified phobia
F40.290 Androphobia
F40.291 Gynephobia
F40.298 Other specified phobia
F40.8 Other phobic anxiety disorders
F40.9 Phobic anxiety disorder, unspecified
F41 Other anxiety disorders
F41.0 Panic disorder [episodic paroxysmal anxiety]
F41.1 Generalized anxiety disorder
F41.3 Other mixed anxiety disorders
F41.8 Other specified anxiety disorders
F41.9 Anxiety disorder, unspecified
F42 Obsessive-compulsive disorder
F42.2 Mixed obsessional thoughts and acts
F42.3 Hoarding disorder
F42.4 Excoriation (skin-picking) disorder
F42.8 Other obsessive-compulsive disorder
F42.9 Obsessive-compulsive disorder, unspecified
F43 Reaction to severe stress, and adjustment disorders

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.