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ICD-10 Guide
ICD-10 CodesChapter 1: Certain infectious and parasitic diseasesB00.4

B00.4

Billable

Herpesviral meningitis

Chapter 1:Certain infectious and parasitic diseases

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

Code Description

ICD-10 B00.4 is a billable code used to indicate a diagnosis of herpesviral meningitis.

Key Diagnostic Point:

Herpesviral meningitis is an inflammation of the protective membranes covering the brain and spinal cord, primarily caused by the herpes simplex virus (HSV). This condition can occur in both adults and children, with HSV type 1 being the most common causative agent. Symptoms typically include fever, headache, neck stiffness, and altered mental status. Diagnosis is often confirmed through lumbar puncture, revealing pleocytosis with a predominance of lymphocytes and the presence of HSV DNA in the cerebrospinal fluid (CSF). While herpesviral meningitis is generally less severe than bacterial meningitis, it can still lead to significant complications, including seizures, long-term neurological deficits, and in rare cases, death. Treatment usually involves antiviral medications such as acyclovir, which can reduce the severity and duration of symptoms. Vaccination against HSV is currently not available, making prevention strategies focused on reducing transmission risk, particularly in sexually active individuals. Understanding the clinical presentation and management of herpesviral meningitis is crucial for timely intervention and improved patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between viral and bacterial meningitis
  • Need for accurate laboratory confirmation (CSF analysis)
  • Potential for co-infection with other viruses
  • Variability in clinical presentation among different age groups

Audit Risk Factors

  • Inadequate documentation of symptoms leading to diagnosis
  • Failure to document laboratory results confirming HSV
  • Misclassification of viral meningitis as bacterial
  • Lack of follow-up documentation on treatment response

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, laboratory results, and treatment plans.

Common Clinical Scenarios

Patients presenting with fever, headache, and altered mental status requiring lumbar puncture.

Billing Considerations

Ensure documentation includes specific viral testing results and treatment response.

Neurology

Documentation Requirements

Neurological examination findings, imaging results, and CSF analysis.

Common Clinical Scenarios

Patients with neurological deficits or seizures following viral meningitis.

Billing Considerations

Document any long-term neurological effects for accurate coding.

Coding Guidelines

Inclusion Criteria

Use B00.4 When
  • According to ICD
  • 10 guidelines, B00
  • 4 should be used when herpesviral meningitis is confirmed through laboratory testing
  • It is essential to document the specific virus involved and any complications arising from the condition

Exclusion Criteria

Do NOT use B00.4 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

62270CPT Code

Lumbar puncture

Clinical Scenario

Used to obtain CSF for analysis in suspected meningitis cases.

Documentation Requirements

Document indication for procedure and findings.

Specialty Considerations

Ensure neurologists provide detailed notes on CSF analysis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of herpesviral meningitis, improving data accuracy and facilitating better tracking of viral infections.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of herpesviral meningitis, improving data accuracy and facilitating better tracking of viral infections.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of herpesviral meningitis, improving data accuracy and facilitating better tracking of viral infections.

Resources

Clinical References

  • •
    CDC - Viral Meningitis

Coding & Billing References

  • •
    CDC - Viral Meningitis

Frequently Asked Questions

What are the common symptoms of herpesviral meningitis?

Common symptoms include fever, headache, neck stiffness, nausea, vomiting, and altered mental status.

How is herpesviral meningitis diagnosed?

Diagnosis is typically made through lumbar puncture and analysis of cerebrospinal fluid, looking for pleocytosis and HSV DNA.

What is the treatment for herpesviral meningitis?

Treatment usually involves antiviral medications such as acyclovir, which can help reduce the severity and duration of symptoms.