[Medical information system (PMSI) does not adequately identify severe trauma]

Area of Science:

• Trauma care and hospital resource management.
• Medical coding and classification systems.
• Injury severity assessment.

Background:

• Accurate hospital resource allocation relies on precise case coding.
• Multiple trauma (DCC26) is a primary diagnosis-coding category for trauma victims, influencing funding levels.
• The study questions the adequacy of DCC26 in identifying all severe trauma cases.

Purpose of the Study:

• To evaluate the effectiveness of DCC26 in identifying severe trauma victims.
• To assess the accuracy of DCC26 compared to established injury severity scores.
• To propose improvements for trauma coding to ensure appropriate resource allocation.

Main Methods:

• Analysis of data from three Level 1 trauma centers over two years.
• Comparison of patients coded as DCC26 versus non-DCC26.
• Utilized Injury Severity Score (ISS), Trauma Related Injury Severity Score (TRISS), and in-hospital mortality for assessment.
• Examined hospital resource utilization and expenditures.

Main Results:

• DCC26 identified a more severely injured patient group but missed many severe trauma cases.
• In the non-DCC26 group, 35% had an ISS > 15, indicating significant undercoding of severe injuries.
• Observed mortality was 10% among 2570 trauma victims analyzed.

Conclusions:

• DCC26 is an insufficient coding category for accurately identifying all severe trauma patients.
• Severe trauma patients often incur high costs related to intensive care and specialized resources.
• The TRISS score is recommended to enhance trauma coding accuracy and optimize resource allocation.