Convert ICD-10 Code O60.02 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O60.02 Preterm labor without delivery, second trimester		644.03 Thrt prem labor-antepart
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 O60.02 - preterm labor without delivery, second trimester based on the most recent General Equivalence Mappings (GEMS) information.