2019 ICD-10-CM Diagnosis Code F31.9

Bipolar disorder, unspecified

    2016 2017 2018 2019 Billable/Specific Code
  • F31.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM F31.9 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of F31.9 - other international versions of ICD-10 F31.9 may differ.
Applicable To
  • Manic depression
The following code(s) above F31.9 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 F31.9:
  • F01-F99
    2019 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
  • F31
    ICD-10-CM Diagnosis Code F31

    Bipolar disorder

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Includes
    • bipolar I disorder
    • bipolar type I disorder
    • manic-depressive illness
    • manic-depressive psychosis
    • manic-depressive reaction
    Type 1 Excludes
    • bipolar disorder, single manic episode (F30.-)
    • major depressive disorder, single episode (F32.-)
    • major depressive disorder, recurrent (F33.-)
    Type 2 Excludes
    Bipolar disorder
Approximate Synonyms
  • Bipolar 1 disorder
  • Bipolar 1 disorder, depressed episode
  • Bipolar 1 disorder, depressed episode w catatonia
  • Bipolar 1 disorder, depressed episode w mixed features
  • Bipolar 1 disorder, depressed episode w rapid cycling
  • Bipolar 1 disorder, manic episode
  • Bipolar 1 disorder, manic episode w catatonia
  • Bipolar 1 disorder, manic episode w mixed features
  • Bipolar disorder
  • Bipolar disorder in partial remission
  • Bipolar disorder, mild
  • Bipolar disorder, moderate
  • Bipolar disorder, partial remission
  • Bipolar disorder, severe, with psychosis
  • Bipolar disorder, severe, without psychosis
  • Bipolar i disorder
  • Bipolar i disorder, most recent episode depressed with catatonic features
  • Bipolar i disorder, most recent episode manic with catatonic features
  • Depressed bipolar i disorder
  • Manic bipolar i disorder
  • Mild bipolar disorder
  • Mixed depressed bipolar i disorder
  • Mixed manic bipolar i disorder
  • Moderate bipolar disorder
  • Rapid cycling depressed bipolar i disorder
  • Severe bipolar disorder with psychotic features
  • Severe bipolar disorder with psychotic features, mood-congruent
  • Severe bipolar disorder with psychotic features, mood-incongruent
  • Severe bipolar disorder without psychotic features
Clinical Information
  • A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.
  • A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence. (mesh)
  • Bipolar disorder is a serious mental illness. People who have it go through unusual mood changes. They go from very happy, "up," and active to very sad and hopeless, "down," and inactive, and then back again. They often have normal moods in between. The up feeling is called mania. The down feeling is depression. The causes of bipolar disorder aren't always clear. It runs in families. Abnormal brain structure and function may also play a role. Bipolar disorder often starts in a person's late teen or early adult years. But children and adults can have bipolar disorder too. The illness usually lasts a lifetime.if you think you may have it, tell your health care provider. A medical checkup can rule out other illnesses that might cause your mood changes.if not treated, bipolar disorder can lead to damaged relationships, poor job or school performance, and even suicide. However, there are effective treatments to control symptoms: medicine and talk therapy. A combination usually works best.
ICD-10-CM F31.9 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 885 Psychoses

Convert F31.9 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

Diagnosis Index entries containing back-references to F31.9:

ICD-10-CM Codes Adjacent To F31.9
F31.72 Bipolar disorder, in full remission, most recent episode hypomanic
F31.73 Bipolar disorder, in partial remission, most recent episode manic
F31.74 Bipolar disorder, in full remission, most recent episode manic
F31.75 Bipolar disorder, in partial remission, most recent episode depressed
F31.76 Bipolar disorder, in full remission, most recent episode depressed
F31.77 Bipolar disorder, in partial remission, most recent episode mixed
F31.78 Bipolar disorder, in full remission, most recent episode mixed
F31.8 Other bipolar disorders
F31.81 Bipolar II disorder
F31.89 Other bipolar disorder
F31.9 Bipolar disorder, unspecified
F32 Major depressive disorder, single episode
F32.0 Major depressive disorder, single episode, mild
F32.1 Major depressive disorder, single episode, moderate
F32.2 Major depressive disorder, single episode, severe without psychotic features
F32.3 Major depressive disorder, single episode, severe with psychotic features
F32.4 Major depressive disorder, single episode, in partial remission
F32.5 Major depressive disorder, single episode, in full remission
F32.8 Other depressive episodes
F32.81 Premenstrual dysphoric disorder
F32.89 Other specified depressive episodes

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