Convert ICD-10 Code O33.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O33.1 Matern care for disproprtn d/t generally contracted pelvis		653.11 Contract pelv NOS-deliv
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.
O33.1 Matern care for disproprtn d/t generally contracted pelvis		653.13 Contrac pelv NOS-antepar
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 O33.1 - maternal care for disproportion due to generally contracted pelvis based on the most recent General Equivalence Mappings (GEMS) information.