| ICD-10-CM-2023 > Q00-Q99 > Q00-Q07 > Q04 |
Q00-Q07 | Congenital malformations of the nervous system | |
Q04 | Other congenital malformations of brain | |
Excl1.: | cyclopia (Q87.0) macrocephaly (Q75.3) | |
Q04.0 | Congenital malformations of corpus callosum | |
Info: | Agenesis of corpus callosum | |
Q04.1 | Arhinencephaly | |
Q04.2 | Holoprosencephaly | |
Q04.3 | Other reduction deformities of brain | |
Info: | Absence of part of brain Agenesis of part of brain Agyria Aplasia of part of brain Hydranencephaly Hypoplasia of part of brain Lissencephaly Microgyria Pachygyria | |
Excl1.: | congenital malformations of corpus callosum (Q04.0) | |
Q04.4 | Septo-optic dysplasia of brain | |
Q04.5 | Megalencephaly | |
Q04.6 | Congenital cerebral cysts | |
Info: | Porencephaly Schizencephaly | |
Excl1.: | acquired porencephalic cyst (G93.0) | |
Q04.8 | Other specified congenital malformations of brain | |
Info: | Arnold-Chiari syndrome, type IV Macrogyria | |
Q04.9 | Congenital malformation of brain, unspecified | |
Info: | Congenital anomaly NOS of brain Congenital deformity NOS of brain Congenital disease or lesion NOS of brain Multiple anomalies NOS of brain, congenital | |
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