Convert ICD-10 Code O23.90 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O23.90 Unsp GU tract infection in pregnancy, unsp trimester		646.60 Gu infect in preg-unspec
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 O23.90 - unspecified genitourinary tract infection in pregnancy, unspecified trimester based on the most recent General Equivalence Mappings (GEMS) information.