• 1 - A condition where surgery has been performed (Surgical code)
• 2 - A condition where no surgery has been performed (non-surgical code)
  • 1 - Respiratory
    • 10 - Brain lesions causing respiratory failure
      • 27 - Infection
        • 1 - Meningitis, unspecified
        • 2 - Encephalitis
        • 3 - Intracranial abscess
        • 4 - Infected CSF shunt
        • 5 - Meningococcal meningitis
        • 6 - Bacterial meningitis, not meningococcal
        • 7 - Viral meningitis