ICD-10-CM code "Q04": Other congenital malformations of brain (2024)

Excludes

1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

   Type 2inborn errors of metabolism (E70-E88)

2. Congenital malformations of the nervous system (Q00-Q07)
3. Other congenital malformations of brain (Q04)

   Type 1cyclopia (Q87.0)

   Type 1macrocephaly (Q75.3)

Includes

1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
2. Congenital malformations of the nervous system (Q00-Q07)
3. Other congenital malformations of brain (Q04)

Subcategories

• Congenital malformations of corpus callosum (Q04.0)
• Arhinencephaly (Q04.1)
• Holoprosencephaly (Q04.2)
• Other reduction deformities of brain (Q04.3)
• Septo-optic dysplasia of brain (Q04.4)
• Megalencephaly (Q04.5)
• Congenital cerebral cysts (Q04.6)
• Other specified congenital malformations of brain (Q04.8)
• Congenital malformation of brain, unspecified (Q04.9)