Background: While contemporary studies demonstrate decreasing complication rates following total pancreatectomy (TP), none have quantified the impact of post-TP complications. The Postoperative Morbidity Index (PMI)—a quantitative measure of postoperative morbidity—combines ACS-NSQIP complication data with severity weighting derived from Modified Accordion Grading System. We establish the PMI for TP in a multi-institutional cohort.