Nursing Home Quality Measures for Medical Outcomes
Nursing home quality measures for medical outcomes are standardized, publicly reported indicators used by federal regulators to assess how well skilled nursing facilities manage the health conditions of their residents. These measures are collected through the Minimum Data Set (MDS), a federally mandated resident assessment instrument, and are reported through the Centers for Medicare & Medicaid Services (CMS) Care Compare system. They form one of the three primary components of the CMS Five-Star Quality Rating System and directly influence regulatory standing, reimbursement eligibility, and public accountability for more than 15,000 Medicare- and Medicaid-certified facilities nationwide (CMS Five-Star Quality Rating System Technical Users' Guide).
Definition and scope
Quality measures (QMs) in the nursing home context are quantitative indicators derived from clinical data that reflect care processes and health outcomes for residents. CMS defines quality measures as tools that help consumers, providers, and policymakers assess the degree to which care is consistent with evidence-based standards and whether care results in improved or maintained resident health (CMS Nursing Home Quality Initiative).
The scope of nursing home QMs covers two distinct resident populations:
- Long-stay residents: Those residing in a facility for 101 or more consecutive days. Measures for this group address chronic condition management, functional maintenance, and preventable decline.
- Short-stay residents: Those in a post-acute skilled nursing setting for 100 or fewer days. Measures for this group focus on rehabilitation outcomes, hospital readmission rates, and discharge success.
CMS organizes reported QMs into the following clinical domains: physical functioning, infections, pain management, pressure injuries, mood and behavior, and preventable hospitalizations. As of the CMS Five-Star Technical Users' Guide (2023 update), the publicly reported set includes 15 long-stay measures and 5 short-stay measures (CMS Five-Star Quality Rating System Technical Users' Guide).
How it works
Quality measure data flows through a structured federal pipeline beginning at the point of resident care and terminating in public-facing reporting on CMS Care Compare.
- MDS Assessment Completion: Certified staff complete standardized MDS assessments at defined intervals — admission, quarterly, annually, and upon significant change in condition. MDS 3.0, governed by 42 CFR § 483.20, mandates the timing and content of these assessments.
- Data Transmission: Facilities transmit MDS records electronically to the CMS QIES ASAP system within 14 days of assessment completion, as required under federal regulation.
- Measure Calculation: CMS calculates facility-level QM scores using rolling quarters of MDS data. Scores are risk-adjusted for resident acuity using case-mix variables embedded in the MDS, ensuring comparisons account for differences in resident population severity.
- Percentile Ranking and Star Assignment: Each facility's QM score is compared against a national distribution. Facilities scoring in the top 10th percentile receive 5 stars for the QM domain; those in the bottom 20th percentile receive 1 star (CMS Five-Star Technical Users' Guide).
- Public Reporting: Calculated scores are published quarterly on CMS Care Compare, accessible to consumers, referring hospitals, and payers.
Effective medication management in nursing homes and consistent wound care services directly affect several high-weight QM categories, including antipsychotic medication use and pressure injury prevalence.
Common scenarios
Quality measures surface in three operational contexts within nursing facilities: routine care monitoring, regulatory survey preparation, and post-acute discharge planning.
Pressure Injuries (Long-Stay and Short-Stay)
The pressure ulcer QM tracks the percentage of residents with Stage 2 or higher pressure injuries that are new or worsened. Facilities with elevated scores in this category frequently face increased scrutiny during standard health inspections and may receive deficiency citations under 42 CFR § 483.25(b). Systematic pressure ulcer prevention and treatment protocols are the primary operational lever for managing this measure.
Antipsychotic Medication Use
The long-stay antipsychotic QM reports the percentage of long-stay residents receiving antipsychotic medications without a diagnosis of schizophrenia, Tourette's syndrome, or Huntington's disease. CMS launched the National Partnership to Improve Dementia Care in 2012, which reduced national antipsychotic prevalence in long-stay nursing home residents from 23.9% in 2011 to 14.9% by 2019, according to CMS partnership data (CMS National Partnership to Improve Dementia Care). This measure intersects directly with dementia and memory care medical services.
Rehospitalization (Short-Stay)
The short-stay rehospitalization QM measures the percentage of short-stay residents rehospitalized after a nursing home admission. Hospital readmission rates are a key performance signal for referring hospitals evaluating skilled nursing facility partners, particularly under the Hospital Readmissions Reduction Program governed by Section 3025 of the Affordable Care Act (CMS Hospital Readmissions Reduction Program).
Falls with Major Injury
This long-stay measure captures the percentage of residents who experienced a fall with a major injury such as bone fracture, joint dislocation, or subdural hematoma. Structured fall prevention programs are evaluated partly through this measure's trajectory over time.
Decision boundaries
Understanding what quality measures do and do not capture is essential for interpreting facility performance data accurately.
Risk adjustment versus raw scores: Raw QM percentages are not directly comparable across facilities without accounting for risk adjustment. CMS applies facility-level risk adjustment for resident acuity differences before assigning star ratings. A facility serving a higher-acuity population may show a higher unadjusted rate but perform comparably on a risk-adjusted basis.
QM scores versus survey results: Quality measure star ratings and health inspection star ratings are calculated independently and weighted differently in the Five-Star composite. A facility may hold a high QM score while carrying unresolved nursing home deficiency citations from recent inspection cycles. The two domains measure different phenomena and should not be conflated.
Short-stay versus long-stay population distinctions: A facility may perform well on long-stay measures reflecting chronic care management while showing weaker performance on short-stay rehabilitation outcome measures. Comparing these scores without recognizing the distinct resident populations produces misleading conclusions.
Staffing levels as a mediating variable: QM scores are not independent of staffing. The federal nursing home staffing mandates issued by CMS under the final rule published in April 2024 (CMS Staffing Final Rule, 42 CFR Parts 483 and 485) establish minimum nurse staffing thresholds that research has associated with improved QM performance, particularly for pressure injuries and infection rates. Facilities falling below staffing minimums have consistently demonstrated weaker outcomes on infection-related and pressure injury QMs, as documented in CMS staffing-outcome correlation analyses.
Measure exclusions: Certain residents are excluded from specific QM denominators. For example, residents under hospice care are excluded from the rehospitalization and functional decline measures, as their care goals differ from curative or rehabilitative intent. The CMS Nursing Home Quality Ratings page provides the full technical exclusion criteria for each measure.
References
- CMS Five-Star Quality Rating System Technical Users' Guide
- CMS Nursing Home Quality Initiative
- CMS National Partnership to Improve Dementia Care
- CMS Hospital Readmissions Reduction Program
- [42 CFR § 483.20 — Resident Assessment (eCFR)](https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-G/part-483/subpart