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G46

⚠ Non-billable (Header)

Vascular syndromes of brain in cerebrovascular diseases

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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📋 Code Instructions

• Code first: underlying cerebrovascular disease (I60-I69)

Child Codes (9)

G46.0Middle cerebral artery syndrome✓ Billable G46.1Anterior cerebral artery syndrome✓ Billable G46.2Posterior cerebral artery syndrome✓ Billable G46.3Brain stem stroke syndrome✓ Billable G46.4Cerebellar stroke syndrome✓ Billable G46.5Pure motor lacunar syndrome✓ Billable G46.6Pure sensory lacunar syndrome✓ Billable G46.7Other lacunar syndromes✓ Billable G46.8Other vascular syndromes of brain in cerebrovascular diseases✓ Billable

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Code Information

CodeG46

BillableNo — Header code

CategoryDiseases of the nervous system (G00-G99)

Excludes10 rule(s)

Excludes20 note(s)

Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)