Convert ICD-10 Code T40.905D to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T40.905D Adverse effect of unspecified psychodysleptics, subs encntr		V58.89 Other specfied aftercare
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code T40.905D - adverse effect of unspecified psychodysleptics [hallucinogens], subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.