Hydrocephalus icd 9 July 8, 2019 16 32 64 128 Hydrocephalus icd 9 code Normal pressure hydrocephalus icd 9 Obstructive hydrocephalus icd 9 Congenital hydrocephalus icd 9 Communicating hydrocephalus icd 9 Vp shunt hydrocephalus icd 9 Hydrocephalus icd 10 code