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K56

Paralytic ileus and intestinal obstruction without hernia

• 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-)
• stenosis of anus or rectum (K62.4)

K56.0

Paralytic ileus

• gallstone ileus (K56.3)
• ileus NOS (K56.7)
• obstructive ileus NOS (K56.69-)

• Paralysis of bowel
• Paralysis of colon
• Paralysis of intestine

K56.1

Intussusception

• intussusception of appendix (K38.8)

• Intussusception or invagination of bowel
• Intussusception or invagination of colon
• Intussusception or invagination of intestine
• Intussusception or invagination of rectum

K56.2

Volvulus

• volvulus of duodenum (K31.5)

• Strangulation of colon or intestine
• Torsion of colon or intestine
• Twist of colon or intestine

K56.3

Gallstone ileus

• Obstruction of intestine by gallstone

K56.4

Other impaction of intestine

K56.41

Fecal impaction

• constipation (K59.0-)
• 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

• intestinal obstruction due to specified condition-code to condition

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

• intestinal obstruction due to specified condition-code to condition

• 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

• obstructive ileus (K56.69-)

• intestinal obstruction with hernia (K40-K46)