G00.9

Applicable To

• Meningitis due to gram-negative bacteria, unspecified

• Purulent meningitis NOS

• Pyogenic meningitis NOS

• Suppurative meningitis NOS

Approximate Synonyms

• Bacterial meningitis

• Bacterial meningitis due to gram-negative bacteria

• Meningitis with gram negative bacteria

• Meningitis, bacterial

Clinical Information

• Bacterial infections of the leptomeninges and subarachnoid space, frequently involving the cerebral cortex, cranial nerves, cerebral blood vessels, spinal cord and nerve roots; causative organism varies with age and clinical status eg, postoperative, immunodeficient, posttraumatic states); clinical manifestations include the acute onset of fever, stiff neck, altered mentation, seizures, and focal neurologic deficits; death may occur within 24 hours of disease onset; pathologic features include a purulent exudate in the subarachnoid space, and diffuse inflammation of neural and vascular structures.

• Bacterial infections of the leptomeninges and subarachnoid space, frequently involving the cerebral cortex, cranial nerves, cerebral blood vessels, spinal cord, and nerve roots.

Details

• G00.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM G00.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of G00.9 – other international versions of ICD-10 G00.9 may differ.