ICD-10 / XVII Congenital malformations, deformations and chromosomal abnormalities / Q00-Q07 Congenital malformations of the nervous system / Q07 Other congenital malformations of nervous system / Q07.0 Arnold-Chiari syndromeFrom parent levelsChapterXVIICongenital malformations, deformations and chromosomal abnormalitiesOpenExclusionsinborn errors of metabolism (E70-E90)BlockQ00-Q07Congenital malformations of the nervous systemOpenCategoryQ07Other congenital malformations of nervous systemOpenExclusionsfamilial dysautonomia [Riley-Day] (G90.1)neurofibromatosis (nonmalignant) (Q85.0)Q07.0CategoryBlock Q00-Q07Chapter XVIIArnold-Chiari syndrome