G03.9 MENINGITIS, UNSPECIFIED

Code Information

  • Diagnosis Code: G03.9
  • Short Description: Meningitis, unspecified
  • Long Description: Meningitis, unspecified
  • Code Version: 2025 ICD-10-CM

The code G03.9 is VALID for claim submission

Code Classification

Synonyms

  • Acute meningitis
  • Adhesive arachnoiditis
  • Arachnoiditis
  • Basilar meningitis
  • Chronic bilateral vestibulopathy due to and following meningitis
  • Decreased flexion
  • Hemorrhagic meningitis
  • Immunoglobulin G4 related disease
  • Immunoglobulin G4 related pachymeningitis
  • Leptomeningitis
  • Malignant meningitis
  • Meningitis
  • Meningitis following procedure
  • Meningomyelitis
  • Metastatic malignant neoplasm of meninges
  • Neonatal meningitis
  • Non-infective meningitis
  • Nuchal rigidity
  • Nuchal rigidity due to meningitis
  • Pachymeningitis
  • Pachymeningitis
  • Postoperative meningitis
  • Posttraumatic meningitis
  • Sequelae of meningitis
  • Spinal arachnoiditis
  • Spinal effusion
  • Subdural effusion

References to Index of Diseases and Injuries

The code G03.9 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Inclusion Terms:
    • Arachnoiditis (spinal) NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
G03.9 Right Arrow 322.9 Meningitis NOS
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
G03 Meningitis due to other and unspecified causes
G03.0 Nonpyogenic meningitis
G03.1 Chronic meningitis
G03.2 Benign recurrent meningitis [Mollaret]
G03.8 Meningitis due to other specified causes
This page was last updated on: 10/1/2025
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