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

Source ICD-10 Code		Target ICD-9 Code
P77.9 Necrotizing enterocolitis in newborn, unspecified		777.50 Nec enterocoltis NB NOS

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