The Accuracy of the ICD-10 Code for Trauma Patients Visiting on Emergency Department and the Error in the ICISS.
- Author:
Jae Hyuk LEE
1
;
Min Seob SIM
Author Information
1. Department of Emergency Medicine, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Korea. coldco2@naver.com
- Publication Type:Original Article
- Keywords:
Trauma;
ICD-10;
ICISS;
Accuracy
- MeSH:
Emergencies;
Humans;
International Classification of Diseases;
Retrospective Studies
- From:Journal of the Korean Society of Traumatology
2009;22(1):108-115
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: We designed a retrospective study to measure the accuracy of the ICD-10 (International Classification of Disease-10) code for trauma patients. We also analyzed the error of the ICISS (International Classification of Disease based Injury Severity Score) due to a missing or an incorrect ICD-10 code. METHODS: For the measuring the accuracy of the ICD-10 code for trauma patients in a tertiary teaching hospital's emergency department, two board certified emergency physician performed a retrospective chart review. The ICD-10 code was classified as a main code or a sub-code. The main code was defined as the code of the main department of treatment, and the sub-code was defined as a code other than the main code. We calculated and compared two ICISS for each patient one by using both the existing code and the other by using a corrected code. We compared the proportions of severe trauma (defined as an ICISS less than 0.9) between when the existing code and the corrected code was used respectively. RESULTS: We reviewed the records of 4287 trauma patients who had been treated from July 2008 to November 2008. The accuracy of the main code, the sub-code of emergency department, main-code, the subcode of hospitalized patients were 97.1%, 59.8%, 98.2% and 57.0%, respectively. Total accuracy of the main and sub-code of emergency department and of hospitalized patients were 91.4% and 58.6%. The number of severe trauma patients increased from 33 to 49 when the corrected code was used in emergency department and increased from 35 to 60 in hospitalized patients. CONCLUSION: The accuracy of the sub-code was lower than that of the main code. A missing or incorrect subcode could cause an error in the ICISS and in the number of patients with severe trauma.
