ICD-10 Code K56.1 – Intussusception (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K56.1 – Intussusception
What it is
Intussusception is when one segment of bowel slides into an adjacent segment, causing partial or complete intestinal obstruction. It is a serious condition that can reduce blood flow to the affected bowel.
Clinical signs
Common findings include intermittent abdominal pain, vomiting, abdominal distension, and bloody or “currant jelly” stools. Clinical features vary; refer to documentation.
When to use this code
Use K56.1 when the record clearly documents intussusception as the cause of bowel obstruction or abdominal symptoms. It applies whether the condition is suspected radiographically or confirmed clinically, if the provider documents it. Check documentation for the exact site and context.
Do not use for
Do not use this code for nonspecific abdominal pain, simple constipation, or other mechanical bowel obstruction without documented intussusception. Do not assign it if the chart does not support the diagnosis.
Coding tip
Verify the provider’s documented diagnosis and any specified bowel segment before coding K56.1.