G46 ICD-10-CM Code: Vascular syndromes of brain in cerebrovascular diseases
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
G46Vascular syndromes of brain in cerebrovascular diseases
ICD-10-CM diagnosis code · United States clinical modification
Where G46 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Episodic and paroxysmal disorders (G40-G47)
- 3
Category G46
Vascular syndromes of brain in cerebrovascular diseases
- 4
Code G46
Vascular syndromes of brain in cerebrovascular diseases
Codes under G46
G46 is a non-billable category. Choose the child code that best matches the documented diagnosis.
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 this code
Inclusion terms
No inclusion terms are listed for G46.
Code first
- underlying cerebrovascular disease (I60-I69)
Use additional code
No “use additional code” instruction is listed for G46.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for G46.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G46.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code G46 mean?
G46 is the FY 2027 U.S. ICD-10-CM code for “Vascular syndromes of brain in cerebrovascular diseases.”
Is G46 a billable or specific ICD-10-CM code?
No. G46 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is G46 located in ICD-10-CM?
G46 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Episodic and paroxysmal disorders (G40-G47) (G40–G47), under category G46, Vascular syndromes of brain in cerebrovascular diseases.
What coding notes are listed for G46?
No inclusion terms are listed for G46 in this reference record. Code-first instructions: underlying cerebrovascular disease (I60-I69). No Excludes1 note is listed. No Excludes2 note is listed.