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ICD-10 Guide
ICD-10 CodesF31.4

F31.4

Billable

Bipolar disorder, current episode depressed, severe, without psychotic features

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

Code Description

ICD-10 F31.4 is a billable code used to indicate a diagnosis of bipolar disorder, current episode depressed, severe, without psychotic features.

Key Diagnostic Point:

Bipolar disorder, classified under mood disorders, is characterized by alternating episodes of mania and depression. The current episode of F31.4 indicates a severe depressive episode without psychotic features. Patients may experience significant impairment in daily functioning, including difficulties in work, social interactions, and self-care. Symptoms may include persistent sadness, loss of interest in activities, fatigue, feelings of worthlessness, and suicidal ideation. The absence of psychotic features differentiates this episode from more severe forms of bipolar disorder, where hallucinations or delusions may be present. Treatment typically involves mood stabilizers, antidepressants, and psychotherapy. Regular monitoring for suicide risk is crucial, as individuals with severe depression are at heightened risk for self-harm. Accurate diagnosis and coding are essential for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other mood disorders
  • Assessment of severity and absence of psychotic features
  • Documentation of suicidal ideation or risk
  • Need for comprehensive treatment plans

Audit Risk Factors

  • Inadequate documentation of severity
  • Failure to note absence of psychotic features
  • Lack of suicide risk assessment
  • Misclassification with other mood disorders

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Comprehensive mental status examination, treatment history, and risk assessments.

Common Clinical Scenarios

Initial evaluation of a patient presenting with depressive symptoms, follow-up visits for medication management.

Billing Considerations

Ensure clear documentation of mood episodes and any changes in treatment plans.

Primary Care

Documentation Requirements

Detailed patient history, screening for depression, and referral notes to mental health specialists.

Common Clinical Scenarios

Routine check-ups where mood symptoms are discussed, management of comorbid conditions.

Billing Considerations

Collaboration with mental health providers for comprehensive care.

Coding Guidelines

Inclusion Criteria

Use F31.4 When
  • Follow ICD
  • CM guidelines for coding mood disorders, ensuring accurate documentation of the current episode's severity and features
  • Include any relevant comorbidities and treatment plans

Exclusion Criteria

Do NOT use F31.4 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient

Clinical Scenario

Used during therapy sessions for patients diagnosed with F31.4.

Documentation Requirements

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

Specialty Considerations

Psychiatrists should ensure that the therapy aligns with the treatment plan for bipolar disorder.

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, improving the accuracy of diagnosis and treatment tracking. F31.4 provides a clear distinction for billing and treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, improving the accuracy of diagnosis and treatment tracking. F31.4 provides a clear distinction for billing and treatment planning.

Reimbursement & Billing Impact

billing and treatment planning.

Resources

Clinical References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders

Coding & Billing References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders

Frequently Asked Questions

What distinguishes F31.4 from other bipolar disorder codes?

F31.4 specifically indicates a current severe depressive episode without psychotic features, which is crucial for treatment planning and risk assessment.