Chronic or unspecified duodenal ulcer with perforation

This code represents a long-standing or uncharacterized ulcer located in the duodenum that has developed a hole or tear through its wall. This perforation allows digestive contents to leak into the abdominal cavity, often leading to peritonitis and severe abdominal pain. It signifies a serious complication of duodenal ulcer disease requiring urgent medical or surgical intervention.

Use this code when documentation explicitly states a chronic or unspecified duodenal ulcer with perforation. This typically applies to patients presenting with acute abdominal pain, signs of peritonitis, and imaging studies confirming a perforated duodenal ulcer. Supporting documentation includes physician notes detailing the chronicity (if known) or lack of specificity of the ulcer, and the presence of perforation.

• Distinguish between acute and chronic ulcers; this code is specific to chronic or unspecified.
• Ensure documentation clearly states "perforation" and not just "hemorrhage" or "obstruction."
• Always sequence this code as the primary diagnosis if it is the reason for the encounter, followed by any associated conditions like peritonitis.