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ICD-9-CM Codes
ICD-9-PCS Codes
331.4
-
Obstructive hydrocephalus
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Overview
GEM Conversion to ICD-10 CM
G91.1
Fs:
10000
–
Obstructive hydrocephalus
Sibling Codes
331.0
Alzheimer's disease
331.2
Senile degeneration of brain
331.3
Communicating hydrocephalus
331.4
Obstructive hydrocephalus
331.5
Idiopathic normal pressure hydrocephalus (INPH)
331.6
Corticobasal degeneration
331.7
Cerebral degeneration in diseases classified elsewhere
331.9
Cerebral degeneration, unspecified
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