Perforation of intestine (nontraumatic)

This code signifies a hole or tear in the wall of the small or large intestine that is not caused by external trauma. This condition can lead to the leakage of intestinal contents into the abdominal cavity, potentially causing peritonitis and sepsis. It represents a serious medical emergency requiring prompt surgical intervention.

Assign this code when documentation clearly indicates a spontaneous or non-traumatic perforation of any part of the intestine, excluding the duodenum or appendix. This typically applies to conditions like ischemic bowel, inflammatory bowel disease complications, or spontaneous rupture. Supporting documentation should specify the non-traumatic nature of the perforation.

• Carefully review documentation to differentiate between traumatic and non-traumatic perforations; traumatic perforations are coded differently.
• Always check for associated diverticular disease; if present, a more specific code from the K57.- series should be used instead.
• Ensure the site of perforation is not the duodenum or appendix, as these have specific exclusion codes.