Intussusception

This code represents the telescoping of one segment of the intestine into an immediately adjacent segment, causing an intestinal obstruction. This condition typically presents acutely and can lead to bowel ischemia, perforation, and peritonitis if not promptly treated.

Use this code when documentation clearly indicates intussusception of the small or large intestine. Supporting documentation would include physician notes detailing clinical presentation (e.g., abdominal pain, vomiting, currant jelly stools), imaging findings (e.g., ultrasound, CT scan showing target sign), and surgical findings confirming the diagnosis.

• Do not use this code for intussusception specifically involving the appendix; refer to the Excludes2 note.
• Always code any associated intestinal obstruction (e.g., K56.50, K56.609) or peritonitis (K65.-) separately.
• Ensure the documentation specifies the location of the intussusception if known, though this code is for unspecified intestinal locations.