Convert ICD-10 Code G43.A1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G43.A1 Cyclical vomiting, in migraine, intractable		346.21 Vrnt mgrn w ntrc mgr NEC
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code G43.A1 - cyclical vomiting, in migraine, intractable based on the most recent General Equivalence Mappings (GEMS) information.