ICD-10 Bipolar Disorder Coding Guide
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Looking for the ICD-10 bipolar disorder code? This comprehensive article includes ICD-10 bipolar disorder diagnostic information, including the code for bipolar 1 disorder, rapid cycling depressed bipolar disorder, and all other bipolar disorder codes, with specifiers.
It’s essential for clinicians to determine the right code for behavioral health assessments and insurance billing purposes.
Bookmark this article as a reference to use next time you need to access the most common ICD-10 bipolar disorder codes.
What is the ICD-10?
The International Classification of Diseases, Tenth Revision (ICD-10) is a clinical guide published by the World Health Organization (WHO) that describes health conditions using standard diagnostic language.
Clinicians in the United States refer to the ICD-10-CM, a clinical modification of the ICD-10 used for diagnosis codes.
In addition, U.S. clinicians use the Diagnostic and Statistical Manual of Mental Health Disorders, fifth edition (DSM-5), published by the American Psychiatric Association (APA). The DSM-5 also contains the relevant ICD-10 bipolar disorder coding information.
Using the appropriate ICD-10 codes is critical for clinicians to use as part of the assessment process and to communicate to insurance payers.
What is the ICD-10 code for bipolar disorder?
Bipolar disorder is classified in the ICD-10 under the section “Mood [affective] disorders” (F30 to F39), and the sub-section “Bipolar disorder” (F31).
There are several ICD-10 bipolar disorder codes listed in the ICD-10, including the ICD-10 for severe bipolar disorder, rapid cycling depressed bipolar disorder, mild bipolar disorder, and mixed depressed bipolar disorder.
The bipolar disorder ICD-10 codes include:
- F31*: Bipolar disorder
- F31.0: Bipolar disorder, current episode hypomanic
- F31.1*: Bipolar disorder, current episode manic without psychotic features (also called bipolar 1 disorder)
- F31.10: Bipolar disorder, current episode manic without psychotic features, unspecified
- F31.11: Bipolar disorder, current episode manic without psychotic features, mild
- F31.12: Bipolar disorder, current episode manic without psychotic features, moderate
- F31.13: Bipolar disorder, current episode manic without psychotic features, severe
- F31.2: Bipolar disorder, current episode manic severe with psychotic features
- F31.3*: Bipolar disorder, current episode depressed, mild or moderate severity
- F31.30: Bipolar disorder, current episode depressed, mild or moderate severity, unspecified
- F31.31: Bipolar disorder, current episode depressed, mild
- F31.32: Bipolar disorder, current episode depressed, moderate
- F31.4: Bipolar disorder, current episode depressed, severe, without psychotic features
- F31.5: Bipolar disorder, current episode depressed, severe, with psychotic features
- F31.6*: Bipolar disorder, current episode mixed
- F31.60: Bipolar disorder, current episode mixed, unspecified
- F31.61: Bipolar disorder, current episode mixed, mild
- F31.62: Bipolar disorder, current episode mixed, moderate
- F31.63: Bipolar disorder, current episode mixed, severe, without psychotic features
- F31.64: Bipolar disorder, current episode mixed, severe, with psychotic features
- F31.7*: Bipolar disorder, currently in remission
- F31.70: Bipolar disorder, currently in remission, most recent episode unspecified
- F31.71: Bipolar disorder, in partial remission, most recent episode hypomanic
- 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
*Note: These codes should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
You can find the most commonly used mental health ICD-10 codes in SimplePractice’s list of the 20 most-frequently billed ICD-10 codes, which includes mood disorders.
Bipolar disorder diagnostic criteria
Bipolar disorder is characterized in the ICD-10 as “two or more episodes in which the patient’s mood and activity levels are significantly disturbed.”
The condition is defined by the following characteristics:
- Some occasions of elevated mood, increased energy, and activity (hypomania or mania)
- Lowering of mood and decreased activity (depression)
Note: Repeated episodes of mania are classified as bipolar disorder. Single manic episodes would fall under “manic episode” (code F30) as should cyclothymic disorder (code F34.0).
While the ICD-10 bipolar disorder codes are the same in the DSM-5, the DSM-5 contains detailed diagnostic criteria, which is summarized below.
The diagnostic criteria for bipolar I disorder include:
- At least one manic episode followed by hypomanic or depressive episodes
- Must meet criteria for at least one manic episode
- Not better explained by other disorders, such as schizoaffective disorder or other psychotic disorders
Bipolar I disorder specifiers include:
- With anxious distress
- With mixed features
- With rapid cycling
- With melancholic features
- With atypical features
- With mood-congruent psychotic features
- With mood-incongruent psychotic features
- With catatonia
- With peripartum onset
- With seasonal pattern
The diagnostic criteria for bipolar II disorder includes:
- Must meet criteria for at least one hypomanic episode and at least one depressive episode
- The depressive episode must include at least five symptoms of depression, which cause clinically significant distress or impairment, and the effects are not attributable to a substance or other medical condition
- There has never been a manic episode
- Not better explained by other disorders
Specifiers for bipolar II disorder include:
- Hypomanic and:
- With anxious distress
- With mixed features
- With rapid cycling
- With peripartum onset
- With seasonal pattern
- Depressed and:
- With anxious distress
- With mixed features
- With rapid cycling
- With melancholic features
- With atypical features
- With mood-congruent psychotic features
- With catatonia
- With peripartum onset
- Status:
- In partial remission
- In full remission
- Severity:
- Mild
- Moderate
- Severe
Note: This is a summary of diagnostic information contained in the DSM-5. Refer to the DSM-5 for complete diagnostic information.
Differential diagnosis for bipolar disorders
While some patients may meet one or two of the criteria for bipolar disorder, there may be a more appropriate diagnosis to consider.
Similar conditions to bipolar I disorder include:
- Major depressive disorder
- Other bipolar disorders
- Generalized anxiety disorder or other anxiety disorders
- Panic disorder or post-traumatic stress disorder
- Bipolar and related disorder due to another medical condition
- Substance/medication-induced bipolar and related disorders
- Schizoaffective disorder
- Attention-deficit hyperactivity disorder
- Disruptive mood dysregulation disorder
- Personality disorders
Bipolar II disorder differential diagnosis includes:
- Major depressive disorder
- Cyclothymic disorder
- Schizoaffective disorder
- Schizophrenia
- Bipolar and related disorders due to another medical condition
- Substance/medication-induced bipolar and related disorders
- Schizoaffective disorder
- Attention-deficit hyperactivity disorder
- Personality disorders
- Other bipolar disorders
How to find the correct bipolar disorder ICD-10 code
The full list of ICD-10 bipolar disorder codes are available in the following digital and book formats:
- The official ICD-10 from the WHO under the section “Bipolar affective disorder” (F30 to F31.9)
- ICD-10 Data, a searchable ICD-10 database
- DSM-5 in the textbook and digital version
It is worth noting that while the DSM-5 does contain accurate ICD-10 codes, they may not align with the most recent ICD version, and diagnostic criteria and other indicators may differ.
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