Convert ICD-10 Code T50.905A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T50.905A Adverse effect of unsp drug/meds/biol subst, init		995.20 Adv eff med/biol sub NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T50.905A Adverse effect of unsp drug/meds/biol subst, init		E947.9 Adv eff medicinal NOS
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 T50.905A - adverse effect of unspecified drugs, medicaments and biological substances, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.