Convert ICD-10 Code O36.1994 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O36.1994 Maternal care for oth isoimmun, unsp trimester, fetus 4		656.20 Abo isoimmunization-unsp
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 O36.1994 - maternal care for other isoimmunization, unspecified trimester, fetus 4 based on the most recent General Equivalence Mappings (GEMS) information.