742: Other congenital anomalies of nervous system
Excludes:
congenital central alveolar hypoventilation syndrome (327.25)
742.3 Congenital hydrocephalus
Aqueduct of Sylvius:
anomaly
obstruction, congenital
stenosis
Atresia of foramina of Magendie and Luschka
Hydrocephalus in newborn
Excludes:
hydrocephalus:
acquired (331.3-331.4)
due to congenital toxoplasmosis (771.2)
with any condition classifiable to 741.9 (741.0)

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