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Patient's permanent identification and PMSI chaining system. Complementary or competing methods?
G Herengt1, E Toussaint, J P Musse
1ANADIM, CHU de Nancy, Avenue De Lattre de Tassigny, 54000 Nancy, France.
Studies in Health Technology and Informatics
|October 6, 2004
Summary
Hospitals use identification systems to manage patient records, but errors like duplicate entries can occur. A new system, the Prospective Payment System (PMSI) chaining, shows similar results to existing hospital systems for patient identification.
Area of Science:
- Health Informatics
- Hospital Administration
- Medical Record Management
Background:
- Hospitals utilize unique identification systems to manage patient files and track hospital stays.
- Existing patient identification systems are prone to errors, including the creation of duplicate records ('doubles') or incorrect chaining of patient information.
- A quality system is in place to detect and manage these identification errors.
Purpose of the Study:
- To compare the effectiveness of the hospital's permanent patient identification system with the Prospective Payment System (PMSI) chaining system.
- To evaluate the accuracy of patient record chaining and identify potential duplicate records.
- To assess the suitability of the PMSI chaining system for quality control in patient identification.
Main Methods:
- Analysis of 61,486 hospital stays at the C.H.U of Nancy during the first six months of 2001.
- Comparison of patient population data derived from the hospital's permanent identification system versus the PMSI chaining system.
- Investigation of chaining differences to identify and analyze potential duplicate patient records.
Main Results:
- No significant differences were detected between the patient population data generated by the hospital's identification system and the PMSI chaining system; results were very close.
- Analysis of 22 detected potential duplicate records revealed that the errors originated from the PMSI chaining key calculation system, not hospital identification management anomalies.
- One case highlighted an anonymous registration resulting in a new identification number for a patient with a prior stay, ensuring confidentiality.
Conclusions:
- The PMSI chaining system demonstrates comparable accuracy to established hospital patient identification systems for managing patient data.
- The PMSI chaining system can be integrated into hospital quality policies for permanent patient identification data management.
- Potential 'doubles' identified were primarily attributed to the PMSI system's calculation method, with a notable exception for anonymous registrations.