ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 5: Mental, Behavioral and Neurodevelopmental disordersF31

F31

Billable

Bipolar disorder

Chapter 5:Mental, Behavioral and Neurodevelopmental disorders

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F31 is a billable code used to indicate a diagnosis of bipolar disorder.

Key Diagnostic Point:

Bipolar disorder is a mental health condition characterized by significant mood swings, including emotional highs (mania or hypomania) and lows (depression). These mood episodes can affect sleep, energy, activity, judgment, behavior, and the ability to think clearly. The disorder is classified into several types, including Bipolar I, Bipolar II, and Cyclothymic Disorder, each defined by the severity and duration of mood episodes. Individuals with bipolar disorder may experience periods of mania, which can lead to impulsive behavior, and depressive episodes, which can result in feelings of hopelessness and suicidal ideation. The condition often requires long-term management, including mood stabilizers, psychotherapy, and lifestyle changes. Due to the complexity of mood disorders, accurate diagnosis and coding are crucial for effective treatment and reimbursement. The risk of suicide is notably higher in individuals with bipolar disorder, necessitating thorough risk assessments and monitoring during treatment.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Variability in symptom presentation across individuals
  • Differentiation between bipolar disorder types
  • Need for comprehensive documentation of mood episodes
  • Potential for comorbid conditions affecting diagnosis

Audit Risk Factors

  • Inadequate documentation of mood episodes
  • Failure to assess and document suicide risk
  • Misclassification of bipolar disorder type
  • Lack of evidence for treatment plans

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed history of mood episodes, treatment response, and risk assessments.

Common Clinical Scenarios

Initial diagnosis, medication management, and crisis intervention.

Billing Considerations

Ensure comprehensive documentation of both manic and depressive episodes for accurate coding.

Primary Care

Documentation Requirements

Regular monitoring of mood symptoms and medication adherence.

Common Clinical Scenarios

Management of comorbid conditions and referrals to mental health specialists.

Billing Considerations

Documenting the impact of bipolar disorder on overall health and functioning.

Coding Guidelines

Inclusion Criteria

Use F31 When
  • Follow the ICD
  • CM guidelines for coding mood disorders, ensuring accurate documentation of the type and severity of episodes
  • Include any relevant comorbidities and treatment plans

Exclusion Criteria

Do NOT use F31 When
No specific exclusions found.

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes

Clinical Scenario

Used during outpatient visits for managing bipolar disorder.

Documentation Requirements

Document the duration of the session and the focus of therapy.

Specialty Considerations

Psychiatrists should ensure that therapy goals align with the treatment plan.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, facilitating better tracking of treatment outcomes and resource allocation. It has also improved the granularity of data for research and quality improvement initiatives.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, facilitating better tracking of treatment outcomes and resource allocation. It has also improved the granularity of data for research and quality improvement initiatives.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, facilitating better tracking of treatment outcomes and resource allocation. It has also improved the granularity of data for research and quality improvement initiatives.

Resources

Clinical References

  • •
    National Institute of Mental Health

Coding & Billing References

  • •
    National Institute of Mental Health

Frequently Asked Questions

What is the difference between Bipolar I and Bipolar II disorder?

Bipolar I disorder is characterized by at least one manic episode, while Bipolar II disorder involves at least one major depressive episode and at least one hypomanic episode, but no full manic episodes.