2023

  1. ICD-10-CM Codes
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  2. F01-F99
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  3. F30-F39
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  4. F34-
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  5. 2023 ICD-10-CM Diagnosis Code F34.0

2023 ICD-10-CM Diagnosis Code F34.0

Cyclothymic disorder

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • F34.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM F34.0 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of F34.0 - other international versions of ICD-10 F34.0 may differ.
Applicable To
  • Affective personality disorder
  • Cycloid personality
  • Cyclothymia
  • Cyclothymic personality
The following code(s) above F34.0 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 F34.0:
  • F01-F99
    2023 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
Approximate Synonyms
  • Cyclothymia
Clinical Information
  • Affective disorder characterized by alternating and recurring periods of depression and elation, similar to manic depressive disorder but of a less severe nature.
  • An affective disorder characterized by periods of depression and hypomania. These may be separated by periods of normal mood.
  • Chronic mood disturbance of at least 2 years' duration involving numerous hypomanic episodes separated by periods of depression or loss of pleasure or interest.
ICD-10-CM F34.0 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 883 Disorders of personality and impulse control

Convert F34.0 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
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to F34.0:
  • Type 2 Excludes: F31
    ICD-10-CM Diagnosis Code F31

    Bipolar disorder

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Includes
    • bipolar I disorder
    • bipolar type I disorder
    • manic-depressive illness
    • manic-depressive psychosis
    • manic-depressive reaction
    • seasonal bipolar disorder
    Type 1 Excludes
    • bipolar disorder, single manic episode (F30.-)
    • major depressive disorder, single episode (F32.-)
    • major depressive disorder, recurrent (F33.-)
    Type 2 Excludes

Diagnosis Index entries containing back-references to F34.0:
  • Cycloid personality F34.0
  • Cyclothymia F34.0
  • Cyclothymic personality F34.0
  • Disorder (of) - see also Disease
    • mood F39
      ICD-10-CM Diagnosis Code F39

      Unspecified mood [affective] disorder

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Affective psychosis NOS
      • persistent F34.9
        ICD-10-CM Diagnosis Code F34.9

        Persistent mood [affective] disorder, unspecified

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        • cyclothymia F34.0
    • personality F60.9
      - see also Personality
      ICD-10-CM Diagnosis Code F60.9

      Personality disorder, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Character disorder NOS
      • Character neurosis NOS
      • Pathological personality NOS
      • affective F34.0
      • cyclothymic F34.0
      • hyperthymic F34.0
    • cyclothymic F34.0
  • Personality (disorder) F60.9
    ICD-10-CM Diagnosis Code F60.9

    Personality disorder, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Character disorder NOS
    • Character neurosis NOS
    • Pathological personality NOS
    • affective F34.0
    • cycloid F34.0
    • cyclothymic F34.0
    • hyperthymic F34.0

ICD-10-CM Codes Adjacent To F34.0
F33.1 Major depressive disorder, recurrent, moderate
F33.2 Major depressive disorder, recurrent severe without psychotic features
F33.3 Major depressive disorder, recurrent, severe with psychotic symptoms
F33.4 Major depressive disorder, recurrent, in remission
F33.40 …… unspecified
F33.41 Major depressive disorder, recurrent, in partial remission
F33.42 Major depressive disorder, recurrent, in full remission
F33.8 Other recurrent depressive disorders
F33.9 Major depressive disorder, recurrent, unspecified
F34 Persistent mood [affective] disorders
F34.0 Cyclothymic disorder
F34.1 Dysthymic disorder
F34.8 Other persistent mood [affective] disorders
F34.81 Disruptive mood dysregulation disorder
F34.89 Other specified persistent mood disorders
F34.9 Persistent mood [affective] disorder, unspecified
F39 Unspecified mood [affective] disorder
F40 Phobic anxiety disorders
F40.0 Agoraphobia
F40.00 …… unspecified
F40.01 …… with panic disorder

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

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