Convert ICD-10 Code T46.991A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T46.991A Poisoning by oth agents aff the cardiovasc sys, acc, init		972.9 Pois-cardiovasc agt NEC
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T46.991A Poisoning by oth agents aff the cardiovasc sys, acc, init		E858.3 Acc poisn-cardiovasc agt
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 T46.991A - poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional), initial encounter based on the most recent General Equivalence Mappings (GEMS) information.