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v1.0.0
ICD-10 Guide
ICD-10 CodesG03.2

G03.2

Billable

Benign recurrent meningitis [Mollaret]

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

Code Description

ICD-10 G03.2 is a billable code used to indicate a diagnosis of benign recurrent meningitis [mollaret].

Key Diagnostic Point:

Benign recurrent meningitis, also known as Mollaret's meningitis, is characterized by recurrent episodes of aseptic meningitis, typically caused by viral infections, most commonly herpes simplex virus (HSV). Patients often present with symptoms such as fever, headache, neck stiffness, and photophobia. Unlike other forms of meningitis, Mollaret's meningitis is self-limiting and does not lead to significant long-term complications. The episodes can recur multiple times over a patient's lifetime, with intervals of symptom-free periods. Diagnosis is primarily clinical, supported by cerebrospinal fluid (CSF) analysis showing pleocytosis with lymphocytic predominance and negative bacterial cultures. MRI may be utilized to rule out other causes of meningitis. Treatment is generally symptomatic, focusing on pain relief and hydration, although antiviral therapy may be considered in severe cases. Understanding the benign nature of this condition is crucial for appropriate management and reassurance of patients.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other types of meningitis (bacterial, tuberculous, etc.)
  • Need for accurate documentation of recurrent episodes
  • Potential for misdiagnosis with more severe CNS infections
  • Variability in clinical presentation and laboratory findings

Audit Risk Factors

  • Inadequate documentation of recurrent episodes
  • Failure to specify the viral etiology
  • Misclassification as bacterial meningitis
  • Lack of supporting lab results in the medical record

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed patient history, including frequency and duration of episodes, and results of CSF analysis.

Common Clinical Scenarios

Patients presenting with recurrent headaches and fever, with CSF showing lymphocytic pleocytosis.

Billing Considerations

Ensure clear documentation of the benign nature of the condition to avoid misclassification.

Infectious Disease

Documentation Requirements

Documentation of viral testing and exclusion of other infectious causes.

Common Clinical Scenarios

Patients with recurrent meningitis symptoms after HSV infection.

Billing Considerations

Consideration of antiviral therapy and its documentation in the treatment plan.

Coding Guidelines

Inclusion Criteria

Use G03.2 When
  • According to ICD
  • 10 guidelines, G03
  • 2 should be used when the condition is specifically identified as benign recurrent meningitis
  • It is important to document the recurrent nature and any relevant laboratory findings

Exclusion Criteria

Do NOT use G03.2 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

87491CPT Code

Herpes simplex virus (HSV) testing

Clinical Scenario

Used when testing for HSV in patients with recurrent meningitis.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Neurology and Infectious Disease specialists should ensure accurate documentation of test results.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of benign recurrent meningitis, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of benign recurrent meningitis, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    CDC - Meningitis Overview

Coding & Billing References

  • •
    CDC - Meningitis Overview

Frequently Asked Questions

What is the primary cause of benign recurrent meningitis?

The primary cause is often viral, particularly herpes simplex virus, leading to recurrent episodes of aseptic meningitis.