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ICD-10 Guide
ICD-10 CodesA32.11

A32.11

Listerial meningitis

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

Code Description

ICD-10 A32.11 is a billable code used to indicate a diagnosis of listerial meningitis.

Key Diagnostic Point:

Listerial meningitis is a severe central nervous system infection caused by the bacterium Listeria monocytogenes. This condition primarily affects individuals with weakened immune systems, including the elderly, pregnant women, and those with underlying health conditions such as diabetes or HIV. The bacteria can enter the bloodstream and cross the blood-brain barrier, leading to inflammation of the protective membranes covering the brain and spinal cord. Symptoms typically include fever, headache, stiff neck, confusion, and in severe cases, seizures. Diagnosis is often confirmed through lumbar puncture, where cerebrospinal fluid (CSF) analysis reveals pleocytosis, elevated protein levels, and low glucose levels, alongside the presence of Listeria monocytogenes in cultures. Treatment usually involves the administration of antibiotics, with ampicillin being the first-line therapy, often combined with gentamicin for synergistic effect. Early diagnosis and treatment are crucial to prevent complications such as neurological damage or death.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between Listerial meningitis and other types of meningitis.
  • Understanding the specific patient populations at risk.
  • Knowledge of appropriate antibiotic treatment protocols.
  • Awareness of potential complications and their coding implications.

Audit Risk Factors

  • Inadequate documentation of risk factors.
  • Failure to document the specific laboratory tests performed.
  • Incorrect coding of the causative organism.
  • Lack of clarity in the clinical scenario leading to misinterpretation.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, laboratory results, and treatment plans.

Common Clinical Scenarios

Patients presenting with fever and neurological symptoms, particularly in immunocompromised individuals.

Billing Considerations

Documentation must clearly indicate the causative organism and any co-morbid conditions.

Neurology

Documentation Requirements

Neurological examination findings, imaging studies, and CSF analysis results.

Common Clinical Scenarios

Patients with acute onset of neurological symptoms and confirmed meningitis.

Billing Considerations

Ensure that all neurological deficits are documented to support the diagnosis.

Coding Guidelines

Inclusion Criteria

Use A32.11 When
  • According to ICD
  • 10 coding guidelines, A32
  • 11 should be used when there is confirmed listerial meningitis
  • It is important to document the specific laboratory findings and any underlying conditions that may have contributed to the infection

Exclusion Criteria

Do NOT use A32.11 When
No specific exclusions found.

Related CPT Codes

62270CPT Code

Lumbar puncture

Clinical Scenario

Used to obtain CSF for analysis in suspected meningitis cases.

Documentation Requirements

Document indication for the procedure and findings from CSF analysis.

Specialty Considerations

Neurology specialists should ensure thorough documentation of neurological assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of listerial meningitis, improving data accuracy and enhancing the ability to track epidemiological trends and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of listerial meningitis, improving data accuracy and enhancing the ability to track epidemiological trends and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of listerial meningitis, improving data accuracy and enhancing the ability to track epidemiological trends and treatment outcomes.

Resources

Clinical References

  • •
    CDC - Listeria (Listeriosis)

Coding & Billing References

  • •
    CDC - Listeria (Listeriosis)

Frequently Asked Questions

What are the common symptoms of listerial meningitis?

Common symptoms include fever, headache, stiff neck, confusion, and in severe cases, seizures. Prompt recognition and treatment are crucial.