Convert ICD-10 Code T50.A11A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T50.A11A Poisn by pertuss vaccine, inc combin w pertuss, acc, init		978.6 Pois-pertussis vaccine
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T50.A11A Poisn by pertuss vaccine, inc combin w pertuss, acc, init		E858.1 Acc poisn-systemic agent
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

ICD-10 to ICD-9 crosswalk for code T50.A11A - poisoning by pertussis vaccine, including combinations with a pertussis component, accidental (unintentional), initial encounter based on the most recent General Equivalence Mappings (GEMS) information.