P77 - Necrotizing enterocolitis of newborn P77 - Necrotizing enterocolitis of newborn
P77.1 - Stage 1 necrotizing enterocolitis in newborn P77.2 - Stage 2 necrotizing enterocolitis in newborn P77.3 - Stage 3 necrotizing enterocolitis in newborn P77.9 - Necrotizing enterocolitis in newborn, unspecified