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ICD-10 Guide
ICD-10 CodesF31.77

F31.77

Billable

Bipolar disorder, in partial remission, most recent episode mixed

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

Code Description

ICD-10 F31.77 is a billable code used to indicate a diagnosis of bipolar disorder, in partial remission, most recent episode mixed.

Key Diagnostic Point:

Bipolar disorder is a chronic mental health condition characterized by extreme mood swings that include emotional highs (mania or hypomania) and lows (depression). The diagnosis of F31.77 indicates that the individual is experiencing a mixed episode, where symptoms of both mania and depression occur simultaneously or in rapid succession. In this case, the disorder is in partial remission, meaning that the individual has experienced a reduction in the severity of symptoms but is not fully symptom-free. This partial remission can manifest as less frequent mood episodes or less intense symptoms. The mixed episode can lead to significant impairment in social, occupational, and other important areas of functioning. Treatment typically involves mood stabilizers, antipsychotics, and psychotherapy, with careful monitoring for suicide risk, as individuals with bipolar disorder have a higher risk of suicidal ideation and attempts, particularly during mixed episodes. Accurate coding is essential for appropriate treatment planning and insurance reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between full and partial remission
  • Identifying mixed episodes versus other mood episodes
  • Understanding the nuances of mood stabilizer therapy
  • Assessing suicide risk and its documentation

Audit Risk Factors

  • Inadequate documentation of symptom severity
  • Failure to note the mixed episode characteristics
  • Lack of suicide risk assessment documentation
  • Misclassification of remission status

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Comprehensive psychiatric evaluation, including mood assessment, treatment history, and risk factors.

Common Clinical Scenarios

Patients presenting with mixed symptoms, medication management, and crisis intervention.

Billing Considerations

Ensure thorough documentation of mood episodes and treatment response to support coding.

Primary Care

Documentation Requirements

Detailed patient history, mental status examination, and follow-up notes on mood stability.

Common Clinical Scenarios

Routine follow-ups for medication management and monitoring of mood symptoms.

Billing Considerations

Collaboration with mental health specialists for comprehensive care.

Coding Guidelines

Inclusion Criteria

Use F31.77 When
  • Follow ICD
  • CM guidelines for coding mental disorders, ensuring accurate documentation of the episode type and remission status
  • Include relevant clinical information to support the diagnosis

Exclusion Criteria

Do NOT use F31.77 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used for follow-up visits for medication management in bipolar disorder.

Documentation Requirements

Document history of present illness, review of systems, and mental status examination.

Specialty Considerations

Psychiatric specialists may require additional documentation on mood stability.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 allows for more specific coding of bipolar disorder, improving the accuracy of diagnosis and treatment planning. F31.77 provides a clear indication of the patient's current status, which is crucial for effective management.

ICD-9 vs ICD-10

The transition to ICD-10 allows for more specific coding of bipolar disorder, improving the accuracy of diagnosis and treatment planning. F31.77 provides a clear indication of the patient's current status, which is crucial for effective management.

Reimbursement & Billing Impact

The transition to ICD-10 allows for more specific coding of bipolar disorder, improving the accuracy of diagnosis and treatment planning. F31.77 provides a clear indication of the patient's current status, which is crucial for effective management.

Resources

Clinical References

  • •
    American Psychiatric Association

Coding & Billing References

  • •
    American Psychiatric Association

Frequently Asked Questions

What does 'partial remission' mean in bipolar disorder?

Partial remission indicates that the individual has experienced a reduction in the severity of symptoms but is not completely symptom-free. This status is important for treatment planning and monitoring.