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ICD-10 Guide
ICD-10 CodesF41.3

F41.3

Billable

Other mixed anxiety disorders

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

Code Description

ICD-10 F41.3 is a billable code used to indicate a diagnosis of other mixed anxiety disorders.

Key Diagnostic Point:

Other mixed anxiety disorders encompass a range of anxiety-related conditions that do not fit neatly into specific categories such as generalized anxiety disorder, panic disorder, or social anxiety disorder. Patients may experience a combination of symptoms from various anxiety disorders, including excessive worry, restlessness, fatigue, difficulty concentrating, and irritability. These symptoms can significantly impair daily functioning and quality of life. The diagnosis is often made when the symptoms are persistent and cause distress or impairment in social, occupational, or other important areas of functioning. Treatment typically involves a combination of psychotherapy, such as cognitive-behavioral therapy (CBT), and pharmacotherapy, including selective serotonin reuptake inhibitors (SSRIs) or benzodiazepines. Effective management of mixed anxiety disorders requires a comprehensive assessment to tailor interventions to the individual's specific symptom profile and needs.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of symptoms that may overlap with other anxiety disorders.
  • Need for thorough documentation to justify the diagnosis.
  • Potential for co-morbid conditions that complicate coding.
  • Variability in treatment approaches that may affect coding.

Audit Risk Factors

  • Inadequate documentation of symptom severity and duration.
  • Failure to specify co-morbid conditions.
  • Misclassification of anxiety disorders.
  • Lack of clear treatment plans in medical records.

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Comprehensive psychiatric evaluations, including detailed patient history and symptom assessment.

Common Clinical Scenarios

Patients presenting with a mix of anxiety symptoms, often alongside depression or other mood disorders.

Billing Considerations

Ensure that all symptoms are documented clearly to support the diagnosis of mixed anxiety disorders.

Primary Care

Documentation Requirements

Thorough documentation of patient complaints, treatment plans, and follow-up assessments.

Common Clinical Scenarios

Patients with anxiety symptoms that impact daily functioning, often referred to mental health specialists.

Billing Considerations

Primary care providers should be aware of the potential for anxiety to present with physical symptoms.

Coding Guidelines

Inclusion Criteria

Use F41.3 When
  • According to ICD
  • 10 guidelines, F41
  • 3 should be used when the patient exhibits symptoms of anxiety that do not fit into a specific category
  • Documentation must support the diagnosis, including the presence of multiple anxiety symptoms and their impact on functioning

Exclusion Criteria

Do NOT use F41.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient.

Clinical Scenario

Used for outpatient therapy sessions addressing mixed anxiety symptoms.

Documentation Requirements

Document the duration of the session and specific therapeutic interventions used.

Specialty Considerations

Psychiatrists and psychologists should ensure that the treatment plan aligns with the diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of anxiety disorders, including mixed anxiety disorders, which helps in better understanding and treatment of these conditions.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of anxiety disorders, including mixed anxiety disorders, which helps in better understanding and treatment of these conditions.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of anxiety disorders, including mixed anxiety disorders, which helps in better understanding and treatment of these conditions.

Resources

Clinical References

  • •
    Anxiety and Depression Association of America

Coding & Billing References

  • •
    Anxiety and Depression Association of America

Frequently Asked Questions

What are the primary symptoms of mixed anxiety disorders?

Primary symptoms include excessive worry, restlessness, fatigue, difficulty concentrating, and irritability, often overlapping with symptoms of other anxiety disorders.