Malignant neoplasm of ileum

This code signifies a cancerous tumor originating in the ileum, which is the final section of the small intestine. It specifically denotes a primary malignant growth within the ileal tissue.

Apply this code when documentation confirms a primary malignant neoplasm located in the ileum. This diagnosis is typically supported by pathology reports from biopsies or surgical resections, along with imaging studies and physician notes.

• Ensure the documentation specifies "ileum" and not other parts of the small intestine (e.g., duodenum, jejunum).
• Distinguish between primary malignancy and metastatic disease to the ileum; this code is for primary.
• Review the pathology report carefully to confirm malignancy and the specific site of origin.