Meckel's diverticulum, malignant

This code signifies the presence of a malignant tumor originating within a Meckel's diverticulum, which is a remnant of the omphalomesenteric duct. This rare condition involves cancerous transformation of the ectopic tissue often found within the diverticulum, such as gastric or pancreatic mucosa.

Use this code when diagnostic imaging, endoscopic findings, or pathological examination confirms a malignant neoplasm arising within a Meckel's diverticulum. Documentation should clearly state the malignancy and its association with the diverticulum, often discovered incidentally during surgery for complications like bleeding or obstruction.

• Do not use this code for benign Meckel's diverticulum, even if symptomatic.
• Ensure pathology reports confirm malignancy within the diverticulum.
• Code any associated complications (e.g., hemorrhage, obstruction) separately, if applicable.