G46
⚠ Non-billable
Vascular syndromes of brain in cerebrovascular diseases
ICD-10-CM · FY2026 · Diseases of the Nervous System
Code
G46
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Nervous System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code G46?
ICD-10-CM code G46 represents Vascular syndromes of brain in cerebrovascular diseases. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Nervous System chapter, effective October 1, 2025 – September 30, 2026.
Is G46 billable?
No. G46 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is G46 in?
G46 belongs to the Diseases of the Nervous System chapter (G00–G99) of ICD-10-CM.
Related codes in the G46 category
G46.0
Middle cerebral artery syndrome
Billable
G46.1
Anterior cerebral artery syndrome
Billable
G46.2
Posterior cerebral artery syndrome
Billable
G46.3
Brain stem stroke syndrome
Billable
G46.4
Cerebellar stroke syndrome
Billable
G46.5
Pure motor lacunar syndrome
Billable
G46.6
Pure sensory lacunar syndrome
Billable
G46.7
Other lacunar syndromes
Billable
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