K56
Excludes1: congenital stricture or stenosis of intestine (Q41-Q42)
cystic fibrosis with meconium ileus (E84.11)
ischemic stricture of intestine (K55.1)
meconium ileus NOS (P76.0)
neonatal intestinal obstructions classifiable to P76.-
obstruction of duodenum (K31.5)
postprocedural intestinal obstruction (K91.3-)
Excludes2: stenosis of anus or rectum (K62.4)