Convert ICD-10 Code T59.6X4A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T59.6X4A Toxic effect of hydrogen sulfide, undetermined, init encntr		987.8 Toxic eff gas/vapor NEC
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T59.6X4A Toxic effect of hydrogen sulfide, undetermined, init encntr		E982.8 Undet pois-gas/vapor 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 T59.6X4A - toxic effect of hydrogen sulfide, undetermined, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.