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v1.0.0
ICD-10 Guide
ICD-10 CodesA92.39

A92.39

West Nile virus infection with other complications

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

Code Description

ICD-10 A92.39 is a billable code used to indicate a diagnosis of west nile virus infection with other complications.

Key Diagnostic Point:

West Nile virus (WNV) infection is an arthropod-borne viral disease primarily transmitted through the bite of infected mosquitoes. The clinical spectrum of WNV infection ranges from asymptomatic cases to severe neurological disease, including encephalitis and meningitis. Patients may present with fever, headache, body aches, and in severe cases, neurological symptoms such as confusion, seizures, and paralysis. The complications associated with WNV infection can include acute flaccid paralysis, myocarditis, and renal failure. The severity of the disease often correlates with the patient's age and underlying health conditions. Diagnosis is typically confirmed through serological testing for WNV-specific IgM antibodies in serum or cerebrospinal fluid. Given the potential for severe outcomes, particularly in immunocompromised individuals and the elderly, careful monitoring and management of complications are crucial. Travel history to endemic areas is an important aspect of the clinical assessment, as it aids in identifying potential exposure to the virus. The coding of WNV infection with other complications requires thorough documentation of the clinical manifestations and any additional complications that may arise during the course of the illness.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential complications that may arise from the infection.
  • Need for detailed documentation of clinical symptoms and travel history.
  • Differentiation from other similar viral infections.
  • Potential for co-morbid conditions that may complicate coding.

Audit Risk Factors

  • Inadequate documentation of complications.
  • Failure to capture travel history.
  • Misclassification of the severity of the infection.
  • Inconsistent coding of co-morbid conditions.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes on symptoms, travel history, and laboratory results.

Common Clinical Scenarios

Patients presenting with neurological symptoms following travel to endemic areas.

Billing Considerations

Ensure all complications are documented to support the use of A92.39.

Neurology

Documentation Requirements

Neurological assessments, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with encephalitis or meningitis due to WNV.

Billing Considerations

Document neurological deficits and their progression for accurate coding.

Coding Guidelines

Inclusion Criteria

Use A92.39 When
  • According to ICD
  • 10 coding guidelines, A92
  • 39 should be used when there are documented complications associated with West Nile virus infection
  • Coders must ensure that all relevant clinical details are captured to justify the use of this specific code

Exclusion Criteria

Do NOT use A92.39 When
No specific exclusions found.

Related CPT Codes

86788CPT Code

West Nile virus antibody test

Clinical Scenario

Used to confirm diagnosis in suspected cases of WNV infection.

Documentation Requirements

Document the reason for testing and clinical findings.

Specialty Considerations

Infectious disease specialists should ensure comprehensive testing is documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of West Nile virus infections, enabling better tracking of complications and outcomes. This specificity aids in research and public health reporting.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of West Nile virus infections, enabling better tracking of complications and outcomes. This specificity aids in research and public health reporting.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of West Nile virus infections, enabling better tracking of complications and outcomes. This specificity aids in research and public health reporting.

Resources

Clinical References

  • •
    CDC West Nile Virus Information

Coding & Billing References

  • •
    CDC West Nile Virus Information

Frequently Asked Questions

What are the common complications associated with West Nile virus infection?

Common complications include neurological issues such as encephalitis, acute flaccid paralysis, and myocarditis, as well as renal failure in some cases.