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ICD-10 Guide
ICD-10 CodesF31.30

F31.30

Billable

Bipolar disorder, current episode depressed, mild or moderate severity, unspecified

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

Code Description

ICD-10 F31.30 is a billable code used to indicate a diagnosis of bipolar disorder, current episode depressed, mild or moderate severity, unspecified.

Key Diagnostic Point:

Bipolar disorder is a mental health condition characterized by extreme mood swings that include emotional highs (mania or hypomania) and lows (depression). The current episode of depression in this code is classified as mild or moderate severity, indicating that the symptoms are present but not severe enough to cause significant impairment in social or occupational functioning. Symptoms may include feelings of sadness, hopelessness, fatigue, and changes in sleep and appetite. The unspecified aspect of this code indicates that the clinician has not specified the exact nature of the depressive episode, which may complicate treatment planning. Accurate diagnosis and coding are essential for effective management, including the use of mood stabilizers and psychotherapy. Regular suicide risk assessments are crucial, as individuals with bipolar disorder are at an increased risk for suicidal ideation and behavior, particularly during depressive episodes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in symptom presentation and severity
  • Need for comprehensive documentation of mood episodes
  • Differentiation from other mood disorders
  • Potential for comorbid conditions

Audit Risk Factors

  • Inadequate documentation of mood severity
  • Failure to assess and document suicide risk
  • Lack of clear treatment plans
  • Inconsistent use of diagnostic criteria

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed clinical notes on mood episodes, treatment plans, and patient history.

Common Clinical Scenarios

Initial diagnosis, medication management, and therapy sessions.

Billing Considerations

Ensure thorough documentation of mood fluctuations and any suicidal ideation.

Primary Care

Documentation Requirements

Comprehensive patient history and mental health assessments.

Common Clinical Scenarios

Routine screenings for depression and management of medications.

Billing Considerations

Collaboration with mental health specialists for comprehensive care.

Coding Guidelines

Inclusion Criteria

Use F31.30 When
  • Follow ICD
  • CM guidelines for mood disorders, ensuring accurate documentation of the episode's severity and duration
  • Include assessments for suicide risk and any comorbid conditions

Exclusion Criteria

Do NOT use F31.30 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 F31.30.

Documentation Requirements

Document the duration and focus of the session.

Specialty Considerations

Psychiatrists should ensure that therapy aligns 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, improving the accuracy of diagnoses and treatment plans. F31.30 provides a clear classification for mild to moderate depressive episodes, enhancing care coordination.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, improving the accuracy of diagnoses and treatment plans. F31.30 provides a clear classification for mild to moderate depressive episodes, enhancing care coordination.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of bipolar disorder, improving the accuracy of diagnoses and treatment plans. F31.30 provides a clear classification for mild to moderate depressive episodes, enhancing care coordination.

Resources

Clinical References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders (DSM-5)

Coding & Billing References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders (DSM-5)

Frequently Asked Questions

What is the difference between F31.30 and F31.31?

F31.30 indicates a mild or moderate depressive episode, while F31.31 indicates a severe depressive episode. The severity impacts treatment decisions and documentation requirements.