Convert ICD-10 Code T44.904A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T44.904A Poisn by unsp drugs aff the autonm nervous sys, undet, init		971.9 Pois-autonomic agent NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T44.904A Poisn by unsp drugs aff the autonm nervous sys, undet, 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 T44.904A - poisoning by unspecified drugs primarily affecting the autonomic nervous system, undetermined, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.