Convert ICD-10 Code T40.0X5A to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T40.0X5A Adverse effect of opium, initial encounter		995.29 Adv eff med/biol NEC/NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T40.0X5A Adverse effect of opium, initial encounter		E935.0 Adv eff heroin
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
T40.0X5A Adverse effect of opium, initial encounter		E935.2 Adv eff opiates
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 T40.0X5A - adverse effect of opium, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.