What is (and isn’t) in your control regarding your facility’s CMI

Why This Topic Matters

CMI is often used to judge CDI effectiveness, but facility-wide changes can be driven by external market, patient, and operational factors. Understanding those influences helps teams explain trends accurately and avoid misattributing changes to CDI performance alone.

Article Sections

1. Overview of CMI fluctuations and the extrinsic vs. intrinsic framework

   Introduces the article’s approach to separating influences on facility CMI into outside factors and program-internal factors. Sets up why extrinsic review is important before evaluating CDI performance.

2. Hospital status

   Discusses how hospital status review can influence the mix of cases seen by the facility. Addresses broader implications for billing, reimbursement, and trend interpretation.

3. Physician population

   Explores how changes in the physician mix at a facility can affect the types of services performed and the overall case profile. Focuses on staffing and specialty patterns as external drivers.

4. Patient population

   Covers demographic shifts and how an aging population can change the balance of admissions seen by the hospital. Relates those changes to broader case-mix trends.

5. Healthcare reform

   Reviews reform-related movement of care across inpatient and outpatient settings and how that can alter the facility’s case mix. Also notes other external market forces that may affect trends.