G46 ICD-10-CA category: Vascular syndromes of brain in cerebrovascular diseases
G46 isn’t a code on its own. Choose one of the 9 codes beneath it, the one the documentation supports.
Official description
G46Vascular syndromes of brain in cerebrovascular diseases
ICD-10-CA · Canada
Codes in G46
G46 isn’t a code on its own. Open the code that matches what the note documents.
G46.0Middle cerebral artery syndromeG46.1Anterior cerebral artery syndromeG46.2Posterior cerebral artery syndromeG46.3Brain stem stroke syndromeG46.4Cerebellar stroke syndromeG46.5Pure motor lacunar syndromeG46.6Pure sensory lacunar syndromeG46.7Other lacunar syndromesG46.8Other vascular syndromes of brain in cerebrovascular diseasesNotes for G46
As CIHI prints them, with any note G46 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- 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 G46 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G40-G47Episodic and paroxysmal disorders
- 3Category G46Vascular syndromes of brain in cerebrovascular diseases
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
Is G46 a valid ICD-10-CA code?
No. G46 (Vascular syndromes of brain in cerebrovascular diseases) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 9 codes; record the one the documentation supports.
Where is G46 in ICD-10-CA?
G46 sits under G40-G47 Episodic and paroxysmal disorders, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G46?
ICD-10-CA lists Excludes notes for G46, 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.