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ICD-10-CM Codes
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G00-G99
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2023 ICD-10-CM Diagnosis Code G00.9
2023 ICD-10-CM Diagnosis Code G00.9
Bacterial meningitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- 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.
Applicable To- Meningitis due to gram-negative bacteria, unspecified
- Purulent meningitis NOS
- Pyogenic meningitis NOS
- Suppurative meningitis NOS
The following code(s) above
G00.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
G00.9:
- 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.
ICD-10-CM G00.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 023 Craniotomy with major device implant or acute complex cns principal diagnosis with mcc or chemotherapy implant or epilepsy with neurostimulator
- 024 Craniotomy with major device implant or acute complex cns principal diagnosis without mcc
- 094 Bacterial and tuberculous infections of nervous system with mcc
- 095 Bacterial and tuberculous infections of nervous system with cc
- 096 Bacterial and tuberculous infections of nervous system without cc/mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Convert G00.9 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
ICD-10-CM Diagnosis Code G03.9
Meningitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Arachnoiditis (spinal) NOS
ICD-10-CM Codes Adjacent To G00.9
F98.5 Adult onset fluency disorder
F98.8 Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence
F98.9 Unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence
F99 Mental disorder, not otherwise specified
G00 Bacterial meningitis, not elsewhere classified
G00.0 Hemophilus meningitis
G00.1 Pneumococcal meningitis
G00.2 Streptococcal meningitis
G00.3 Staphylococcal meningitis
G00.8 Other bacterial meningitis
G00.9
Bacterial meningitis, unspecified
G01 Meningitis in bacterial diseases classified elsewhere
G02 Meningitis in other infectious and parasitic diseases classified elsewhere
G03 Meningitis due to other and unspecified causes
G03.0 Nonpyogenic meningitis
G03.2 Benign recurrent meningitis [Mollaret]
G03.8 Meningitis due to other specified causes
G03.9 Meningitis, unspecified
G04 Encephalitis, myelitis and encephalomyelitis
G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
