What is the term for the surgical procedure that involves removing a diseased portion of the intestine and connecting the ends?

The term for the surgical procedure that involves removing a diseased portion of the intestine and connecting the ends is "anastomosis." In surgical practice, anastomosis refers to the process of surgically joining two structures, typically tubular structures like blood vessels or segments of the intestine. After a segment of the intestine is resected, or removed, the ends of the healthy intestine are reconnected through an anastomosis, allowing for the continuity of the gastrointestinal tract.

Resection, while related, specifically refers to the removal of the diseased portion itself rather than the subsequent connection of the intestine, which is the main focus of the question. Reconstruction could imply a broader range of surgical repairs and does not specifically denote the act of connecting two ends after resection. Incision simply refers to the cut made during surgery and is not pertinent to the act of connecting the ends after removal of tissue. Thus, anastomosis is the precise term for the procedure described.