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v1.0.0
ICD-10 Guide
ICD-10 CodesA92.4

A92.4

Chikungunya virus disease

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

Code Description

ICD-10 A92.4 is a billable code used to indicate a diagnosis of chikungunya virus disease.

Key Diagnostic Point:

Chikungunya virus disease is an arthropod-borne viral infection primarily transmitted to humans through the bite of infected Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus. The disease is characterized by an abrupt onset of fever, severe joint pain, and rash. Other symptoms may include headache, muscle pain, and fatigue. The joint pain can be debilitating and may persist for weeks to months, leading to significant morbidity. Chikungunya is endemic in tropical and subtropical regions, and outbreaks have been reported in Africa, Asia, Europe, and the Americas. Travel history is crucial in diagnosing chikungunya, as it helps to identify potential exposure to the virus. Laboratory confirmation can be achieved through serological tests or PCR, but clinical diagnosis is often based on symptomatology and travel history. The disease is generally self-limiting, with supportive care being the mainstay of treatment. However, in some cases, chronic joint pain may develop, necessitating further medical intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for accurate travel history documentation
  • Differentiation from other arboviral infections (e.g., dengue, Zika)
  • Potential for chronic symptoms requiring long-term follow-up
  • Variability in symptom presentation among patients

Audit Risk Factors

  • Inadequate documentation of travel history
  • Failure to differentiate from similar viral infections
  • Misreporting of symptom severity
  • Lack of laboratory confirmation in cases where it is warranted

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed travel history, symptom onset, and laboratory results.

Common Clinical Scenarios

Patients presenting with fever and joint pain after travel to endemic areas.

Billing Considerations

Consider co-infections with other arboviruses and document all relevant symptoms.

Rheumatology

Documentation Requirements

History of joint pain duration, severity, and response to treatment.

Common Clinical Scenarios

Patients with persistent joint pain following chikungunya infection.

Billing Considerations

Document any chronic conditions that may complicate the diagnosis.

Coding Guidelines

Inclusion Criteria

Use A92.4 When
  • Follow the official ICD
  • CM coding guidelines for infectious diseases, ensuring accurate documentation of travel history and symptomatology
  • Include any relevant laboratory results to support the diagnosis

Exclusion Criteria

Do NOT use A92.4 When
No specific exclusions found.

Related CPT Codes

86769CPT Code

Antibody test for chikungunya virus

Clinical Scenario

Used when laboratory confirmation of chikungunya is needed.

Documentation Requirements

Document the reason for testing and any relevant symptoms.

Specialty Considerations

Infectious disease specialists should ensure comprehensive documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chikungunya virus disease, improving data collection and analysis for public health monitoring and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chikungunya virus disease, improving data collection and analysis for public health monitoring and research.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of chikungunya virus disease, improving data collection and analysis for public health monitoring and research.

Resources

Clinical References

  • •
    CDC Chikungunya Virus

Coding & Billing References

  • •
    CDC Chikungunya Virus

Frequently Asked Questions

What are the common symptoms of chikungunya?

Common symptoms include fever, severe joint pain, rash, headache, muscle pain, and fatigue. Joint pain can persist for weeks to months.

How is chikungunya diagnosed?

Diagnosis is based on clinical symptoms, travel history, and laboratory tests such as serology or PCR.