Convert ICD-10 Code P77.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
P77.1 Stage 1 necrotizing enterocolitis in newborn		777.51 Stg I nec enterocol NB

ICD-10 to ICD-9 crosswalk for code P77.1 - stage 1 necrotizing enterocolitis in newborn based on the most recent General Equivalence Mappings (GEMS) information.