G03.1 ICD-10-CA code: Chronic meningitis
G03.1 is the ICD-10-CA code for “Chronic meningitis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
G03.1Chronic meningitis
ICD-10-CA · Canada · Also written G031
Index terms
Entries in CIHI’s alphabetical index that lead to G03.1. Searching the index by the condition the note names is how coders reach this code.
- Meningitis (basal) (cerebral) (spinal), chronic NEC
Notes for G03.1
As CIHI prints them, with any note G03.1 takes from the headings above it.
Includes
- arachnoiditis, leptomeningitis, meningitis, pachymeningitis due to other and unspecified causesFrom G03 Meningitis due to other and unspecified causes
Excludes
Conditions classified elsewhere.
- Meningoencephalitis (G04.-)meningomyelitis (G04.-)West Nile meningitis (A92.3)From G03 Meningitis due to other and unspecified causes
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 6: Diseases of the nervous system (G00-G99)
Where G03.1 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G00-G09Inflammatory diseases of the central nervous system
- 3Category G03Meningitis due to other and unspecified causes
- 4Valid code G03.1Chronic meningitis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code G03.1 mean?
G03.1 is the ICD-10-CA code for “Chronic meningitis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is G03.1 in ICD-10-CA?
G03.1 sits under G03 Meningitis due to other and unspecified causes, within G00-G09 Inflammatory diseases of the central nervous system, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G03.1?
ICD-10-CA lists Includes, Excludes notes for G03.1, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.