The Patient Safety Indicator (PSI) 90 composite measure captures hospital performance related to the occurrence of 10 preventable adverse events among hospitalised patients.

This is a weighted composite measure of Patient Safety Indicators, each of which evaluate pressure ulcer rate, iatrogenic pneumothorax rate, in-hospital fall with hip fracture rate, perioperative haemorrhage and haematoma rate, postoperative respiratory failure rate, perioperative pulmonary embolism and deep vein thrombosis rate, postoperative sepsis rate, postoperative wound dehiscence rate, and unrecognized abdominopelvic accidental puncture/laceration rate.

Detailed calculations for this composite measure are reported in the technical specifications.

See technical specifications for each PSI's exclusion criteria.

See each PSI for risk-adjustment models.

By hospital and state.

Medicare fee-for-service (FFS) discharges and Medicare beneficiary enrolment data

HAC Reduction Program data is displayed at data.cms.gov

www.cms.gov/medicare/payment/prospective-payment-systems/acute-inpatient-pps/hospital-acquired-condition-reduction-program-hacrp

p4qm.org/measures/0531