Using present-on-admission coding to improve exclusion rules for quality metrics: the case of failure-to-rescue.

The Agency for Healthcare Research and Quality (AHRQ) patient safety indicator "death among surgical inpatients with serious treatable complications" (failure-to-rescue) uses rules to exclude complications presumed to be present-on-admission (POA). Like other administrative data-based quality measures, exclusion rules were developed with limited information on whether complications were POA. We examine whether the accuracy of failure-to-rescue exclusion rules can be improved with data with good POA indicators.