K56: Paralytic ileus and intestinal obstruction without hernia

Codes under K56 (Paralytic ileus and intestinal obstruction without hernia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
K56.0	Paralytic ileus	✓
K56.1	Intussusception	✓
K56.2	Volvulus	✓
K56.3	Gallstone ileus	✓
K56.4	Other impaction of intestine	—
K56.5	Intestinal adhesions [bands] with obstruction (postinfection)	—
K56.6	Other and unspecified intestinal obstruction	—
K56.7	Ileus, unspecified	✓
K56.41	Fecal impaction	✓
K56.49	Other impaction of intestine	✓
K56.50	Intestinal adhesions [bands], unspecified as to partial versus complete obstruction	✓
K56.51	Intestinal adhesions [bands], with partial obstruction	✓
K56.52	Intestinal adhesions [bands] with complete obstruction	✓
K56.60	Unspecified intestinal obstruction	—
K56.69	Other intestinal obstruction	—
K56.600	Partial intestinal obstruction, unspecified as to cause	✓
K56.601	Complete intestinal obstruction, unspecified as to cause	✓
K56.609	Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction	✓
K56.690	Other partial intestinal obstruction	✓
K56.691	Other complete intestinal obstruction	✓
K56.699	Other intestinal obstruction unspecified as to partial versus complete obstruction	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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