Convert ICD-10 Code O36.1190 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O36.1190 Maternal care for Anti-A sensitization, unsp trimester, unsp		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 O36.1190 - maternal care for anti-a sensitization, unspecified trimester, not applicable or unspecified based on the most recent General Equivalence Mappings (GEMS) information.