Reducing unnecessary admissions related to 1-day stays: a collaborative effort.

Purpose: To reduce the rate of inappropriate admissions to acute care inpatient prospective payment system hospitals

Primary Practice Setting: Acute care hospitals.

Methodology And Sample: The study involved 3 measurement periods. A statistically valid sample of Medicare discharge claims with a 1-day length of stay (LOS for diagnosis-related groups 132, 141, 143, 182, and 183 was obtained from each participating hospital.