Convert ICD-10 Code G21.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G21.0 Malignant neuroleptic syndrome		333.92 Neuroleptic malgnt synd

ICD-10 to ICD-9 crosswalk for code G21.0 - malignant neuroleptic syndrome based on the most recent General Equivalence Mappings (GEMS) information.