Convert ICD-10 Code T50.A21D to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T50.A21D Poisoning by mixed bact vaccines w/o a pertuss, acc, subs		V58.89 Other specfied aftercare
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 T50.A21D - poisoning by mixed bacterial vaccines without a pertussis component, accidental (unintentional), subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.