Convert ICD-10 Code T44.902D to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T44.902D Poisn by unsp drugs aff the autonm nrv sys, slf-hrm, subs		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 T44.902D - poisoning by unspecified drugs primarily affecting the autonomic nervous system, intentional self-harm, subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.