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ICD-10 Coding for Bipolar II Disorder(F31.81, F31.8, F31.9)

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Learn about the ICD-10 coding for Bipolar II Disorder (F31.81), including documentation requirements and clinical validation criteria.

Also known as:
Bipolar 2Bipolar Type 2Bipolar Disorder Type II
Related ICD-10 Code Ranges

Complete code families applicable to Bipolar II Disorder

F01-F99Primary Range

Mental, Behavioral and Neurodevelopmental disorders

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Primary ICD-10-CM Codes
Bipolar II disorder
F31.81Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Bipolar disorder, unspecifiedF31.9
Cyclothymic disorderF34.0

Documentation & Coding Risks

Avoid these common issues when documenting Bipolar II Disorder.

Omitting episode details

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.

Mitigation

Use structured templates, Regular training on documentation standards

Using F31.9 for Bipolar II

Impact

Reimbursement: May lead to lower reimbursement rates., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases accuracy of patient records.

Mitigation

Ensure documentation specifies hypomanic and depressive episodes to use F31.81.

Episode Documentation

Impact

Incomplete documentation of episodes can lead to audit issues.

Mitigation

Ensure all episodes are fully documented with duration and impact.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with F31.81.