Convert ICD-9 Code 646.10 to ICD-10

Source ICD-9 Code		Target ICD-10 Code
646.10 Edema in preg-unspec		O12.00 Gestational edema, unspecified trimester
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.
646.10 Edema in preg-unspec		O12.20 Gestational edema with proteinuria, unspecified trimester
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.
646.10 Edema in preg-unspec		O26.00 Excessive weight gain in pregnancy, unspecified trimester
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-9 to ICD-10 crosswalk for code 646.10 - edema or excessive weight gain in pregnancy, without mention of hypertension, unspecified as to episode of care or not applicable based on the most recent General Equivalence Mappings (GEMS) information.