Is G03.2 a billable ICD-10-CM code?

Yes. G03.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does G03.2 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Inflammatory diseases of the central nervous system (G00-G09).

What cannot be coded together with G03.2?

G03.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above G03.2 (G03) and apply to it just the same.

G03.2

G03.2 — Benign recurrent meningitis [Mollaret]

Billable / specific codeICD-10-CM

G03.2 is a billable, specific ICD-10-CM code for benign recurrent meningitis [mollaret]. It is valid for submission on a claim.

Excludes1 inherited from the categories above G03.2

These are not written on G03.2, but they bind it: a note on a category applies to every code beneath it. Billing G03.2 with anything listed here is a denial.

Written on G03 — Meningitis due to other and unspecified causes

meningoencephalitis (G04.-)
meningomyelitis (G04.-)

Risk adjustment

G03.2 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

G03.2 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56612Billing and Coding: CT of the Head
A57204Billing and Coding: MRI and CT Scans of the Head and Neck
A57206Billing and Coding: Lumbar MRI

How G03.2 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 G03.2.

Meningitis›benign recurrent(Mollaret)
Meningitis›Mollaret(benign recurrent)

Code history

G03.2 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share G03. If G03.2 is not quite right, the correct code is usually one of these.

Questions about G03.2

Is G03.2 a billable ICD-10-CM code?: Yes. G03.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G03.2 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Inflammatory diseases of the central nervous system (G00-G09).
What cannot be coded together with G03.2?: G03.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above G03.2 (G03) and apply to it just the same.