Q04.5 - Megalencephaly

The ICD 10 Code for Megalencephaly is listed as Q04.5.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	Q04.5
Description:	Megalencephaly
Diagnostic Related Groups (MS-DRG v30.0)	091 - Other Disorders Of Nervous System W Mcc 092 - Other Disorders Of Nervous System W Cc 093 - Other Disorders Of Nervous System W/o Cc/mcc 793 - Full Term Neonate W Major Problems

Chapter	Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Block	Congenital malformations of the nervous system (Q00-Q07)
Parent	Q04 - Other congenital malformations of brain
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code:	742.4 - Other specified congenital anomalies of brain (approximate)
ICD-10-CM Siblings (same level / similar specificity) of Q04.5:
Q04.0 - Congenital malformations of corpus callosum
Q04.1 - Arhinencephaly
Q04.2 - Holoprosencephaly
Q04.3 - Other reduction deformities of brain
Q04.4 - Septo-optic dysplasia of brain
Q04.6 - Congenital cerebral cysts
Q04.8 - Other specified congenital malformations of brain
Q04.9 - Congenital malformation of brain, unspecified