This indicator measures in-hospital deaths per 1,000 discharges for hospitalisations with low expected mortality (less than 0.5%) among patients ages 18 years and older

Number of deaths among cases meeting the inclusion and exclusion rules for the denominator.

Discharges among patients ages 18 years and older with a low-mortality (less than 0.5% mortality)

Exclude discharges: with any listed ICD-10-CM diagnosis code for trauma (Appendix G: TRAUMID , with any listed ICD-10-CM diagnosis code for cancer (Appendix H: CANCEID ) with any listed ICD-10-CM diagnosis code for immunocompromised state (Appendix I: IMMUNID , with any listed ICD-10-PCS procedure code for immunocompromised state (Appendix I: IMMUNIP ), transferred to an acute care facility (DISP=2), with a principal ICD-10-CM diagnosis code assigned to MDC 15 Newborns & Other Neonates with Conditions Originating in Perinatal Period (Appendix O: MDC15PRINDX ), with an ungroupable DRG (DRG=999), with missing discharge disposition (DISP=missing), gender (SEX=missing), age (AGE=missing), quarter (DQTR=missing), year (YEAR=missing), or principal diagnosis (DX1=missing), with missing MDC (MDC=missing) when the user indicates that MDC is provided.

qualityindicators.ahrq.gov/measures/PSI_TechSpec

qualityindicators.ahrq.gov/Downloads/Modules/PSI/V2024/TechSpecs/PSI02DeathRateinLow-MortalityDiagnosisRelatedGroups_(DRGs).pdf