Convert ICD-10 Code O12.11 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O12.11 Gestational proteinuria, first trimester		646.21 Renal dis NOS-delivered
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.
O12.11 Gestational proteinuria, first trimester		646.23 Renal dis NOS-antepartum
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 O12.11 - gestational proteinuria, first trimester based on the most recent General Equivalence Mappings (GEMS) information.