Convert ICD-10 Code O45.90 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O45.90 Premature separation of placenta, unsp, unsp trimester		641.20 Prem separ placen-unspec
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 O45.90 - premature separation of placenta, unspecified, unspecified trimester based on the most recent General Equivalence Mappings (GEMS) information.