2007 ICD-9-CM Procedure 44.01 Truncal vagotomy Bilateral dissection of the abdominal branches of the vagus nerve. It is used frequently in the surgical management of duodenal and gastric ulcers, as well as in physiologic studies of gastrointestinal secretion and motility. 44.01 is a specific code that can be used to specify a procedure 44.01 contains 1 index entry View the full Volume 3 44.* hierarchy Index entries containing 44.01: Vagotomy (gastric) 44.00 truncal 44.01