Browse Disease Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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6  Diseases of the Nervous System and Sense Organs
330-337   Hereditary and Degenerative Diseases of the Central Nervous System
331   Other cerebral degenerations
331.4   Obstructive hydrocephalus
   Acquired hydrocephalus NOS
Excludes:    congenital hydrocephalus (741.0742.3)