Convert ICD-10 Code T46.1X4A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T46.1X4A Poisoning by calcium-channel blockers, undetermined, 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.
T46.1X4A Poisoning by calcium-channel blockers, undetermined, init		E980.4 Undet pois-med agnt NEC
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 T46.1X4A - poisoning by calcium-channel blockers, undetermined, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.