Accrediting agencies may request the Net Death Rate. This rate became important because providers had a concern on deaths less than 48 hours after admission – they may or may not have death due to the hospitalization. Because of this, Net Death Rates excludes deaths under 48 hours.
Postoperative Death Rates and Surgical Death Rates refer to the same thing. It is the number of deaths occurring after an operation. In this rate, deaths 10 days after surgery are included.
Hospitals may evaluate the relationship of deaths in specific operations instead of using the postoperative death rate to evaluate the effectiveness of a hospital’s care.
ref: Horton, Loretta and Margaret Theodorakis. Calculating and Reporting Healthcare Statistics, Fourth Edition. AHIMA Press.