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K56

⚠ Non-billable (Header)

Paralytic ileus and intestinal obstruction without hernia

Diseases of the digestive system (K00-K95)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with K56

  • • 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

direct

May be coded together if both conditions coexist

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

Child Codes (8)

K56.0Paralytic ileusK56.1IntussusceptionK56.2VolvulusK56.3Gallstone ileusK56.4Other impaction of intestineK56.5Intestinal adhesions [bands] with obstruction (postinfection)K56.6Other and unspecified intestinal obstructionK56.7Ileus, unspecified

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Code Information

CodeK56
BillableNo — Header code
CategoryDiseases of the digestive system (K00-K95)
Excludes17 rule(s)
Excludes21 note(s)
Child codes8

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)