P77 Necrotizing enterocolitis of newbornNon-billable header with 4 child codes.
P77.1 Stage 1 necrotizing enterocolitis in newbornP77.2 Stage 2 necrotizing enterocolitis in newbornP77.3 Stage 3 necrotizing enterocolitis in newbornP77.9 Necrotizing enterocolitis in newborn, unspecifiedK55 Vascular disorders of intestine ("necrotizing enterocolitis of newborn (P77.-)")K55.3 Necrotizing enterocolitis ("necrotizing enterocolitis of newborn (P77.-)")P37 Other congenital infectious and parasitic diseases ("necrotizing enterocolitis in newborn (P77.-)")K55 Vascular disorders of intestine ("necrotizing enterocolitis of newborn (P77.-)")K55.3 Necrotizing enterocolitis ("necrotizing enterocolitis of newborn (P77.-)")P37 Other congenital infectious and parasitic diseases ("necrotizing enterocolitis in newborn (P77.-)")