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 | ✓ |
| K56.0 | Paralytic ileus | ✓ |
| K56.1 | Intussusception | ✓ |
| K56.1 | Intussusception | ✓ |
| K56.2 | Volvulus | ✓ |
| K56.2 | Volvulus | ✓ |
| K56.3 | Gallstone ileus | ✓ |
| K56.3 | Gallstone ileus | ✓ |
| K56.4 | Other impaction of intestine | — |
| K56.4 | Other impaction of intestine | — |
| K56.5 | Intestinal adhesions [bands] with obstruction (postinfection) | — |
| K56.5 | Intestinal adhesions [bands] with obstruction (postinfection) | — |
| K56.6 | Other and unspecified intestinal obstruction | — |
| K56.6 | Other and unspecified intestinal obstruction | — |
| K56.7 | Ileus, unspecified | ✓ |
| K56.7 | Ileus, unspecified | ✓ |
| K56.41 | Fecal impaction | ✓ |
| K56.41 | Fecal impaction | ✓ |
| K56.49 | Other impaction of intestine | ✓ |
| K56.49 | Other impaction of intestine | ✓ |
| K56.50 | Intestinal adhesions [bands], unspecified as to partial versus complete obstruction | ✓ |
| K56.50 | Intestinal adhesions [bands], unspecified as to partial versus complete obstruction | ✓ |
| K56.51 | Intestinal adhesions [bands], with partial obstruction | ✓ |
| K56.51 | Intestinal adhesions [bands], with partial obstruction | ✓ |
| K56.52 | Intestinal adhesions [bands] with complete obstruction | ✓ |
| K56.52 | Intestinal adhesions [bands] with complete obstruction | ✓ |
| K56.60 | Unspecified intestinal obstruction | — |
| K56.60 | Unspecified intestinal obstruction | — |
| K56.69 | Other intestinal obstruction | — |
| K56.69 | Other intestinal obstruction | — |
| K56.600 | Partial intestinal obstruction, unspecified as to cause | ✓ |
| K56.600 | Partial intestinal obstruction, unspecified as to cause | ✓ |
| K56.601 | Complete 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 | ✓ |
| K56.609 | Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction | ✓ |
| K56.690 | Other partial intestinal obstruction | ✓ |
| K56.690 | Other partial intestinal obstruction | ✓ |
| K56.691 | Other complete intestinal obstruction | ✓ |
| K56.691 | Other complete intestinal obstruction | ✓ |
| K56.699 | Other intestinal obstruction unspecified as to partial versus complete obstruction | ✓ |
| K56.699 | Other intestinal obstruction unspecified as to partial versus complete obstruction | ✓ |
Frequently asked questions
What is ICD-10-CM code K56?
K56 is an ICD-10-CM category covering Paralytic ileus and intestinal obstruction without hernia. It contains 42 more specific diagnosis codes, 32 of which are billable.
Is K56 a billable code?
No — K56 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K56.0 — Paralytic ileus). 32 of the 42 codes under K56 are billable.
What codes fall under K56?
K56 includes K56.0, K56.0, K56.1, K56.1, K56.2, plus 37 more. See the full list with descriptions and billable status above.
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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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