G03.9 — Meningitis, unspecified
G03.9 is a billable, specific ICD-10-CM code for meningitis, unspecified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Arachnoiditis (spinal) NOS
Risk adjustment
G03.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
G03.9 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56551Billing and Coding: Visual Fields Testing
- A56695Billing and Coding: Implantable Infusion Pump
- A56799Billing and Coding: Visual Fields Testing
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
How G03.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G03.9.
- Meningitis(basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
Related codes at this level
Codes that share G03. If G03.9 is not quite right, the correct code is usually one of these.
Questions about G03.9
- Is G03.9 a billable ICD-10-CM code?
- Yes. G03.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G03.9 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Inflammatory diseases of the central nervous system (G00-G09).