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ICD-10 Guide
ICD-10 CodesF06.33

F06.33

Billable

Mood disorder due to known physiological condition with manic features

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

Code Description

ICD-10 F06.33 is a billable code used to indicate a diagnosis of mood disorder due to known physiological condition with manic features.

Key Diagnostic Point:

F06.33 refers to a mood disorder that arises as a direct result of a known physiological condition, characterized by manic features. This diagnosis is typically made when a patient exhibits symptoms of mania, such as elevated mood, increased energy, decreased need for sleep, and impulsive behavior, which can be traced back to an underlying medical condition. Common physiological conditions that may lead to this mood disorder include neurological disorders (e.g., multiple sclerosis, traumatic brain injury), endocrine disorders (e.g., hyperthyroidism), and metabolic conditions (e.g., Cushing's syndrome). The manic features must be prominent and persistently present, distinguishing this disorder from other mood disorders that may not have a clear physiological cause. Accurate diagnosis requires a thorough clinical evaluation, including a detailed medical history and appropriate laboratory tests to identify the underlying condition. Treatment typically involves addressing the physiological condition while managing the mood symptoms, often requiring a multidisciplinary approach.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires comprehensive understanding of both psychiatric and physiological conditions.
  • Differentiation from primary mood disorders can be challenging.
  • Documentation must clearly link mood symptoms to the physiological condition.
  • Potential overlap with other mood disorders complicates coding.

Audit Risk Factors

  • Inadequate documentation linking mood symptoms to the physiological condition.
  • Failure to specify the nature of the physiological condition.
  • Misclassification of the mood disorder as primary rather than secondary.
  • Inconsistent use of terminology in clinical notes.

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed psychiatric evaluation notes, including mood assessments and history of the physiological condition.

Common Clinical Scenarios

Patients with neurological disorders presenting with manic symptoms.

Billing Considerations

Must ensure that the physiological condition is well-documented and linked to the mood disorder.

Neurology

Documentation Requirements

Comprehensive neurological assessments and diagnostic imaging results.

Common Clinical Scenarios

Patients with traumatic brain injuries exhibiting mood changes.

Billing Considerations

Collaboration with psychiatry for accurate diagnosis and treatment planning.

Coding Guidelines

Inclusion Criteria

Use F06.33 When
  • According to ICD
  • 10 coding guidelines, F06
  • 33 should be used when the mood disorder is directly attributable to a known physiological condition
  • Coders must ensure that the documentation clearly supports the diagnosis, including the identification of the physiological condition and the presence of manic features

Exclusion Criteria

Do NOT use F06.33 When
  • Exclusion criteria include primary mood disorders that are not linked to physiological conditions

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used for follow-up visits for patients diagnosed with F06.33.

Documentation Requirements

Documentation must include assessment of mood symptoms and management of the physiological condition.

Specialty Considerations

Psychiatric and neurological evaluations may require additional documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mood disorders related to physiological conditions, improving the accuracy of diagnoses and treatment plans. F06.33 provides a clear distinction between primary and secondary mood disorders, facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mood disorders related to physiological conditions, improving the accuracy of diagnoses and treatment plans. F06.33 provides a clear distinction between primary and secondary mood disorders, facilitating better patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mood disorders related to physiological conditions, improving the accuracy of diagnoses and treatment plans. F06.33 provides a clear distinction between primary and secondary mood disorders, facilitating better patient management.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the key symptoms of F06.33?

Key symptoms include elevated mood, increased energy, decreased need for sleep, and impulsive behavior, all linked to a known physiological condition.

How do I differentiate F06.33 from primary mood disorders?

F06.33 is specifically linked to a physiological condition, whereas primary mood disorders do not have an identifiable medical cause.