HAC Penalty Risk Auditor
FY2026 · structural fragility of Total HAC Scores
Hospital audit
TRISTAR SOUTHERN HILLS MEDICAL CENTER
TN · Facility ID 440197 · FY2026
Total HAC Score
-0.5608
Percentile
17.1th
Displayed status
No reductionFrom CMS Payment Reduction column (file).
Score vs threshold (0.3792)
Hospital score -0.5608. Penalty threshold 0.3792. Distribution of 2929 scored hospitals.
Data completeness
Reported on 6 of 6. Missing measures show N/A with the CMS footnote; footnote 18 values are imputed worst-case, not measured performance.
- PSI-90z -0.399
- CLABSIz -0.794
- CAUTIz -1.319
- SSIz -0.802
- CDIz -1.133
- MRSAz 1.082
Fragility
Each reported measure moves the score by 0.1667 points.
| Measure | Current Z | Score @ floor | Score @ cap | Abs swing |
|---|---|---|---|---|
| PSI-90controls fate | -0.3990 | -0.7416 | -0.0758 | 0.6658 |
| CAUTI | -1.3186 | -0.5608 | 0.0567 | 0.6175 |
| MRSA | 1.0819 | -0.9840 | -0.3703 | 0.6137 |
| CDI | -1.1330 | -0.6157 | -0.0065 | 0.6092 |
| CLABSI | -0.7941 | -0.6629 | -0.0551 | 0.6078 |
| SSI | -0.8021 | -0.6699 | -0.0652 | 0.6047 |
Swing is a mechanics illustration: replace one reported Z with that measure’s observed floor or cap while holding others fixed. Ranked by absolute swing.
Peer context
Percentile within TN (73 scored): 21.2th
Hospital score -0.5608. Penalty threshold 0.3792. Distribution of 73 scored hospitals.
Percentile among hospitals with 6 reported measures (1940 scored): 11.0th
Hospital score -0.5608. Penalty threshold 0.3792. Distribution of 1940 scored hospitals.
Plain-language verdict
As scored, the CMS file lists no payment reduction (Total HAC Score -0.5608; threshold 0.3792).
Reported on 6 of 6 measures; each reported measure moves the equal-weighted score by 0.1667 points.
Describes scoring mechanics only. Not medical or legal advice. Any “would / would not” language is an illustration against the published threshold, not a CMS prediction.