Convert ICD-10 Code Z71.51 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
Z71.51 Drug abuse counseling and surveillance of drug abuser		V65.42 Counslng sbstn use abuse
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 Z71.51 - drug abuse counseling and surveillance of drug abuser based on the most recent General Equivalence Mappings (GEMS) information.