CPT® Code 43632

A partial gastrectomy, specifically a distal gastrectomy, is a surgical procedure aimed at removing the lower portion of the stomach. This operation is typically indicated for various gastrointestinal conditions that necessitate the removal of part of the stomach to alleviate symptoms or improve function. During the procedure, a surgical incision is made in the abdomen to access the stomach. The surgeon carefully divides the stomach at the pylorus, which is the opening from the stomach into the small intestine, allowing for the mobilization of the stomach to expose critical blood vessels, particularly the left gastric artery. This artery is essential for supplying blood to the stomach, and its branches are meticulously identified, divided, and ligated to prevent excessive bleeding during the surgery. Once the stomach is adequately prepared, its contents are evacuated, and the organ is decompressed to facilitate the surgical process. The surgeon then marks the sites for resection, ensuring precise cuts are made to remove the distal portion of the stomach. After the stomach is divided, a staple line is applied to secure the remaining stomach tissue, which is then oversewn with sutures to ensure hemostasis, or the cessation of bleeding. Following the resection, the remaining stomach segment is aligned with a segment of the jejunum, which is part of the small intestine. This alignment is crucial for the subsequent anastomosis, where the two segments are joined together. Temporary stay sutures are initially placed to hold the structures in position before being replaced with running sutures that secure the stomach serosa to the intestinal serosa. This procedure is particularly important as it establishes a new pathway for food to pass from the stomach into the small intestine, thereby maintaining digestive function after the partial gastrectomy. The specific code for this procedure is CPT® 43632, which is used when the stomach is anastomosed to the jejunum, distinguishing it from other related procedures that involve different anatomical connections.