CPT® Code 44147

The CPT® Code 44147 refers to a partial colectomy performed through both abdominal and transanal approaches. This surgical procedure involves the removal of a segment of the colon, which is typically indicated for various conditions affecting the colon, such as tumors, diverticulitis, or inflammatory bowel disease. The operation begins with a midline incision in the abdomen, allowing the surgeon to access the abdominal cavity and inspect the colon. During the procedure, the specific segment of the colon that requires resection is identified and mobilized, ensuring that surrounding structures are preserved. Key vascular structures, such as the superior rectal vessels, are carefully dissected, ligated, and divided to facilitate the removal of the affected colon segment. The ureters, which are vital for urinary function, are also identified and protected throughout the procedure. The peritoneum is incised to enter the presacral space, where further dissection is performed down to the pelvic floor. An elliptical incision is made around the anus to free the rectum from surrounding tissues, allowing for the transection of the colon above and below the diseased segment. After the removal of the affected portion, the anal incision is closed, and the remaining segments of the bowel are sutured together in a process known as anastomosis. Finally, drains may be placed to prevent fluid accumulation, and the abdominal incision is closed in layers to promote healing.