ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
Q00-Q07 Congenital malformations of the nervous system /
Q04 Other congenital malformations of brain
Billable ICD-10-CM Code Q04.8
Q04.8
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Other specified congenital malformations of brain 
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Arnold-Chiari syndrome, type IV
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Macrogyria
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