Convert ICD-10 Code T58.8X4A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T58.8X4A Toxic effect of carb monx from oth source, undet, init		986 Tox eff carbon monoxide
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T58.8X4A Toxic effect of carb monx from oth source, undet, init		E982.1 Undetermin poison-co 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 T58.8X4A - toxic effect of carbon monoxide from other source, undetermined, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.