|  K56 |  | Paralytic ileus and intestinal obstruction without hernia   | 
	
		|  |  | 
	
		| 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) 
 |  | 
|  |  | 
	
		|  K56.0 |  | Paralytic ileus |  
		|  |  | 
| Paralysis of bowel |  | Paralysis of colon |  | Paralysis of intestine |  
		| Excludes1 | gallstone ileus (K56.3) ileus NOS (K56.7)
 obstructive ileus NOS (K56.69-)
 
 |  |  | 
|  |  | 
	
		|  K56.1 |  | Intussusception |  
		|  |  | 
| Intussusception or invagination of bowel |  | Intussusception or invagination of colon |  | Intussusception or invagination of intestine |  | Intussusception or invagination of rectum |  
		| Excludes2 | intussusception of appendix (K38.8) 
 |  |  | 
|  |  | 
	
		|  K56.2 |  | Volvulus |  
		|  |  | 
| Strangulation of colon or intestine |  | Torsion of colon or intestine |  | Twist of colon or intestine |  
		| Excludes2 | volvulus of duodenum (K31.5) 
 |  |  | 
|  |  | 
	
		|  K56.3 |  | Gallstone ileus |  
		|  |  | 
| Obstruction of intestine by gallstone |  |  | 
|  |  | 
	
		|  K56.4 |  | Other impaction of intestine |  |  |  | 
	
		|  K56.41 |  | Fecal impaction |  
		|  |  | 
	
		| Excludes2 | incomplete defecation (R15.0) 
 |  |  |  |  |  | 
	
		|  K56.49 |  | Other impaction of intestine |  |  | 
|  |  | 
	
		|  K56.5 |  | Intestinal adhesions [bands] with obstruction (postinfection) |  
		|  |  | 
| Abdominal hernia due to adhesions with obstruction |  | Peritoneal adhesions [bands] with intestinal obstruction (postinfection) |  |  |  |  | 
	
		|  K56.50 |  | Intestinal adhesions [bands], unspecified as to partial versus complete obstruction |  
		|  |  | 
| Intestinal adhesions with obstruction NOS |  |  |  |  |  | 
	
		|  K56.51 |  | Intestinal adhesions [bands], with partial obstruction |  
		|  |  | 
| Intestinal adhesions with incomplete obstruction |  |  |  |  |  | 
	
		|  K56.52 |  | Intestinal adhesions [bands] with complete obstruction |  |  | 
|  |  | 
	
		|  K56.6 |  | Other and unspecified intestinal obstruction |  |  |  | 
	
		|  K56.60 |  | Unspecified intestinal obstruction |  |  |  | 
	
		|  K56.600 |  | Partial intestinal obstruction, unspecified as to cause |  
		|  |  | 
| Incomplete intestinal obstruction, NOS |  |  |  |  |  | 
	
		|  K56.601 |  | Complete intestinal obstruction, unspecified as to cause |  |  |  |  | 
	
		|  K56.609 |  | Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction |  
		|  |  | 
| Intestinal obstruction NOS |  |  |  |  |  |  | 
	
		|  K56.69 |  | Other intestinal obstruction |  
		|  |  | 
| Enterostenosis NOS |  | Obstructive ileus NOS |  | Occlusion of colon or intestine NOS |  | Stenosis of colon or intestine NOS |  | Stricture of colon or intestine NOS |  |  |  |  | 
	
		|  K56.690 |  | Other partial intestinal obstruction |  
		|  |  | 
| Other incomplete intestinal obstruction |  |  |  |  |  | 
	
		|  K56.691 |  | Other complete intestinal obstruction |  |  |  |  | 
	
		|  K56.699 |  | Other intestinal obstruction unspecified as to partial versus complete obstruction |  
		|  |  | 
| Other intestinal obstruction, NEC |  |  |  |  | 
|  |  | 
	
		|  K56.7 |  | Ileus, unspecified |  
		|  |  | 
	
		| Excludes1 | obstructive ileus (K56.69-) 
 |  
		| Excludes2 | intestinal obstruction with hernia (K40-K46) 
 |  |  |