Patient Safety Analysis Resources
The NHSN application provides various options that allow NHSN users to analyze their surveillance data. The resources listed below are intended to help you use the analysis tool, and interpret data analyzed from the Patient Safety Component of NHSN.
- Analysis Quick Reference Guides
- Data Entry and Analysis Training
- New! Introduction to NHSN Analysis – 2018
- New! Analysis: Telling Your Hospital’s Story with NHSN Data – 2018
- New! Analyzing Device-associated HAI Data – 2018
- New! Analyzing SSI Data – 2018
- New! Analyzing LabID Event Data – 2018
- New! Analyzing Device-associated SURs – 2018
- New! Targeted Assessment for Prevention (TAP) Reports – 2018
- Introduction to the NHSN Re-baseline – March 2017
- The NHSN Re-Baseline: In Depth – March 2017
- Updating the national risk-adjustment of HAI Data – March 2016
- New! Introduction to NHSN Analysis for the Patient Safety Component
- NHSN Basic Statistics Quick Learn [Video – 11 min]
- NHSN Analysis: A Focus on CMS Reports [Video – 16 min]
- 2019 Operative Procedure Code Documents
The documents listed below should be used for procedures performed in 2019.
- ICD-10-PCS Procedure Code Mapping to NHSN Operative Procedure Codes Cdc-excel[XLSX – 750 KB]
- Current Procedural Terminology (CPT) Procedure Code Mapping to NHSN Operative Procedure Codes Cdc-excel[XLSX – 350 KB]
- ICD-10-PCS & CPT Codes – Guidance for HPRO & KPRO Procedure Details Cdc-excel[XLSX – 46 KB]
This guidance document may be used for completing the NHSN procedure details for HPRO – hip arthroplasty and/or KPRO – Knee arthroplasty operative procedures.
- FUSN ICD-10-PCS Codes – Guidance for Spinal Level and Approach. Cdc-excel[XLSX – 30 KB]
This supplemental guidance may be used to complete the spinal level and approach fields in the Operative Procedure Details section for FUSN procedures.
- ICD-10 CM Diabetes Diagnostic Codes Cdc-excel[XLSX – 15 KB]
ICD-10-CM codes included in this spreadsheet are acceptable for use to answer “YES” to “Diabetes Mellitus” for completing the NHSN Operative Procedure Details.
- ICD-10-CM/PCS Codes for ‘prior infection at hip or knee joint’ denominator form question Cdc-excel[XLSX – 20 KB]
Use ICD-10-PCS/CM diagnosis or procedure codes included in this spreadsheet to determine if patient meets criteria for ‘prior infection at index joint’.
- Document detailing changes made to the 2018-2019 operative procedure codes
- Summary of 2018-2019 Code Changes Cdc-excel[XLSX – 400 KB]
This document includes changes made to the procedure codes listed for 2018 SSI reporting, as well as, new procedure codes added for 2019 SSI reporting. Because both outdated (removed) and current procedure codes are included, use caution if this document is used to identify procedures for SSI events for reporting.
- Summary of 2018-2019 Code Changes Cdc-excel[XLSX – 400 KB]
SAS Macro to Compare the SIR to 1 or Other Nominal Value. September 2015 Cdc-sas[SAS – 5K]
This macro can be used to compare the SIR to a single nominal value, consistent with the methods used by NHSN.
SAS Macro to Compare 2 SIRs February 2014 Cdc-sas[SAS – 5K]
This macro can be used to perform a comparison between two SIRs, consistent with the methods used by NHSN.
SAS Macro to Compare 2 Incidence Density Rates February 2014 Cdc-sas[SAS – 4K]
This macro can be used to perform a comparison between two incidence density rates (e.g., CAUTI rates), consistent with the methods used by NHSN.
SAS Macro to Compare 2 Proportions February 2014 Cdc-sas[SAS – 6K]
This macro can be used to perform a comparison between two proportions (e.g., catheter device utilization ratios), consistent with the methods used by NHSN.
SAS Macro for a Single Incidence Density Rate February 2014 Cdc-sas[SAS – 3K]
This macro can be used to perform confidence interval testing around a single incidence density rate (e.g., CLABSI rate), consistent with methods used by NHSN.
SAS Macro for a Single Proportion June 2015 Cdc-sas[SAS – 3K]
This macro can be used to perform confidence interval testing around a single proportion (e.g., healthcare worker flu vaccination percentages). This macro can also be used to compare a single proportion to a benchmark value, consistent with methods used by NHSN.
- Annual Reports
- National and State HAI SIR Reports
- CDC Vital Signs: Making Healthcare Safer
- CDC Vital Signs: Protecting Patients from Antibiotic Resistance
SIRs on the 2015 Baseline
- List of Aggregate Data Sources for Rate Comparisons and SIRs. January 2017 Cdc-pdf[PDF – 124K]
- NHSN’s Guide to the SIR (updated July 2017) Cdc-pdf[PDF – 3M]
SIRs on the Original Baseline
Risk Adjustment for Healthcare Facility-Onset C. difficile and MRSA Bacteremia Laboratory-identified Event Reporting in NHSN March 2013 Cdc-pdf[PDF – 406K]This report describes the risk modeling that CDC applied to LabID event CDI and MRSA bacteremia data submitted to NHSN, the results of which have been incorporated into the analysis options in the NHSN application.
- New! NHSN HAI Reports
- New! Sneak Peek at Upcoming NHSN HAI Publications Cdc-pdf[PDF – 1 MB]
This presentation provides important information on upcoming national and state HAI data reports that are scheduled to be released by the Division of Healthcare Quality Promotion in early 2018.
- New! NHSN’s Guide to the SUR (updated October 2018) Cdc-pdf[PDF – 1 MB]
A comprehensive guide to the NHSN’s SUR, including significant factors used in the SUR calculations under the 2015 baseline.
- New! NHSN’s Guide to the SIR (updated August 2018) Cdc-pdf[PDF – 3 MB]
A comprehensive guide to NHSN’s SIR, including risk factors used in the SIR calculations under the 2015 baseline.
- Data Analysis and Presentation Standardization ToolkitExternal
The Council of State and Territorial Epidemiologists (CSTE) and CDC have partnered to create a toolkit of best practices in the analysis and display of HAI data for public reports. This toolkit provides guidance and recommended methods for organizations that publish facility-specific HAI data, and includes examples for both a technical and consumer-friendly HAI report.