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v1.0.0
ICD-10 Guide
ICD-10 CodesF41.1

F41.1

Billable

Generalized anxiety disorder

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

Code Description

ICD-10 F41.1 is a billable code used to indicate a diagnosis of generalized anxiety disorder.

Key Diagnostic Point:

Generalized Anxiety Disorder (GAD) is characterized by excessive, uncontrollable worry about various aspects of life, including health, finances, and social interactions. This worry is often disproportionate to the actual events and can lead to significant distress and impairment in daily functioning. Patients may experience physical symptoms such as restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances. The onset of GAD can occur at any age, but it often begins in childhood or adolescence. Diagnosis is based on clinical assessment, including a thorough history and evaluation of symptoms, which must persist for at least six months. GAD can co-occur with other anxiety disorders, such as panic disorder, social anxiety disorder, and specific phobias, as well as mood disorders like depression. Treatment typically involves psychotherapy, medication, or a combination of both, focusing on anxiety management techniques such as cognitive-behavioral therapy (CBT), mindfulness, and relaxation strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating GAD from other anxiety disorders
  • Co-morbid conditions complicating diagnosis
  • Variability in symptom presentation
  • Need for comprehensive documentation to support diagnosis

Audit Risk Factors

  • Inadequate documentation of symptom duration
  • Failure to document co-morbid conditions
  • Lack of evidence for treatment plans
  • Inconsistent coding with clinical notes

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed patient history, symptom assessment, treatment plans, and follow-up notes.

Common Clinical Scenarios

Initial diagnosis of GAD, treatment adjustments, and management of co-morbid conditions.

Billing Considerations

Ensure that all symptoms are documented clearly to support the diagnosis and treatment plan.

Primary Care

Documentation Requirements

Comprehensive health history, mental health screenings, and referrals to mental health specialists.

Common Clinical Scenarios

Routine screenings for anxiety, management of mild to moderate symptoms, and referrals for therapy.

Billing Considerations

Primary care providers should be aware of the overlap between physical and mental health symptoms.

Coding Guidelines

Inclusion Criteria

Use F41.1 When
  • Follow the ICD
  • CM coding guidelines for mental health disorders, ensuring that the diagnosis is supported by clinical documentation
  • Include any relevant co
  • morbid conditions and specify the duration of symptoms

Exclusion Criteria

Do NOT use F41.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient

Clinical Scenario

Used for therapy sessions addressing GAD symptoms.

Documentation Requirements

Document the duration of the session and the therapeutic techniques used.

Specialty Considerations

Psychiatrists 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, improving the accuracy of diagnoses and treatment plans. GAD is now more distinctly categorized, aiding in better management and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of anxiety disorders, improving the accuracy of diagnoses and treatment plans. GAD is now more distinctly categorized, aiding in better management and research.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of anxiety disorders, improving the accuracy of diagnoses and treatment plans. GAD is now more distinctly categorized, aiding in better management and research.

Resources

Clinical References

  • •
    American Psychiatric Association - DSM-5

Coding & Billing References

  • •
    American Psychiatric Association - DSM-5

Frequently Asked Questions

What are the primary symptoms of Generalized Anxiety Disorder?

The primary symptoms include excessive worry, restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances.