Convert ICD-10 Code O63.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
O63.1 Prolonged second stage (of labor)		662.21 Prolong 2nd stage-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.

ICD-10 to ICD-9 crosswalk for code O63.1 - prolonged second stage (of labor) based on the most recent General Equivalence Mappings (GEMS) information.