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ICD-10 Guide
ICD-10 CodesR46.6

R46.6

Undue concern and preoccupation with stressful events

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R46.6 is a billable code used to indicate a diagnosis of undue concern and preoccupation with stressful events.

Key Diagnostic Point:

R46.6 refers to a condition characterized by excessive worry and fixation on stressful life events, which can lead to significant distress and impairment in daily functioning. Patients may exhibit symptoms such as anxiety, irritability, sleep disturbances, and difficulty concentrating. This preoccupation can stem from various sources, including personal, professional, or societal stressors. Clinically, it is essential to differentiate this condition from other anxiety disorders, as it may not meet the full criteria for generalized anxiety disorder or other specific anxiety disorders. The condition can manifest in various ways, including somatic complaints, avoidance behaviors, and changes in social interactions. It is crucial for healthcare providers to assess the impact of these concerns on the patient's overall mental health and quality of life, as well as to explore potential underlying psychological issues that may contribute to the undue concern.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Subjectivity of symptoms and concerns
  • Overlap with other anxiety disorders
  • Need for thorough documentation of stressors
  • Potential for misdiagnosis

Audit Risk Factors

  • Inadequate documentation of stressors
  • Failure to differentiate from other anxiety disorders
  • Lack of evidence for functional impairment
  • Insufficient follow-up notes

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed history of stressors, impact on daily life, and any associated physical symptoms.

Common Clinical Scenarios

Patients presenting with somatic complaints linked to stress, such as headaches or gastrointestinal issues.

Billing Considerations

Consideration of comorbid conditions such as depression or chronic illness that may exacerbate undue concern.

Emergency Medicine

Documentation Requirements

Acute assessment of mental status, immediate stressors, and any safety concerns.

Common Clinical Scenarios

Patients presenting with acute anxiety attacks or psychosomatic symptoms following a traumatic event.

Billing Considerations

Rapid assessment and documentation of the patient's mental state and any immediate interventions provided.

Coding Guidelines

Inclusion Criteria

Use R46.6 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the diagnosis is supported by clinical documentation that reflects the patient's symptoms and the impact on their functioning

Exclusion Criteria

Do NOT use R46.6 When
No specific exclusions found.

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used when a patient presents with undue concern and requires evaluation and management.

Documentation Requirements

Document the patient's history, examination findings, and treatment plan.

Specialty Considerations

Internal medicine providers should focus on both mental and physical health aspects.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mental health conditions, improving the ability to capture the nuances of symptoms like undue concern.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mental health conditions, improving the ability to capture the nuances of symptoms like undue concern.

Reimbursement & Billing Impact

impact on functioning.

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

When should R46.6 be used?

R46.6 should be used when a patient exhibits undue concern and preoccupation with stressful events that significantly impacts their daily functioning but does not meet the criteria for a specific anxiety disorder.