Bipolar disorder, unspecified
- F31.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2025 edition of ICD-10-CM F31.9 became effective on October 1, 2024.
- 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
that may be applicable to F31.9:
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 v42.0):
- 885 Psychoses
Convert F31.9 to ICD-9-CMCode 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
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Diagnosis Index entries containing back-references to F31.9:
- Disorder (of) – see also Disease
- bipolar (I) (seasonal) (type 1) F31.9
- current (or most recent)
- depressed F31.9
- manic F31.9
- current (or most recent)
- bipolar (I) (seasonal) (type 1) F31.9
- Manic depression F31.9