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An Analysis of the Disagreement in Disease Coding in South Korean Medical Institutions: Focusing on the Health Insurance Claim Data of Outpatients

우리나라 의료기관의 질병 코딩 불일치성 분석 : 외래환자 건강보험 청구 자료를 중심으로

  • Jeon, Yun-Hee (Department of Medical Information, Chungcheong University) ;
  • Kang, Gil-Won (Department of Health Information and Management College of Medicine, Chungbuk National University)
  • 전윤희 (충청대학교 보건의료정보과) ;
  • 강길원 (충북대학교 의학과 의료정보학 및 관리학 교실)
  • Received : 2018.11.16
  • Accepted : 2018.12.20
  • Published : 2018.12.28

Abstract

The purpose of this study was to use the data from the Health Insurance Review and Assessment Service to analyze the disagreement in disease coding given by different medical institutions on the same disease of the same patient and provide basic data that could help improve the quality of national public health statistics. 9,976,826 patients' data records from the Health Insurance Review and Assessment Service-National Patient Sample (HIRA-NPS) of 2014 were analyzed. The disagreement in disease coding differed by movement paths for medical institutions; the disagreement rate tended to increase when moving from a medical institution other than public health centers to a public health center and decrease remarkably when moving from a specialized general hospital to another. Therefore, this analysis of disagreement in disease coding among medical institutions suggests the need to supplement the system so that domestic medical institutions can realize consistent disease coding.

이 연구는 건강보험 심사평가원 자료를 이용하여 동일 환자의 동일 질환에 대하여 서로 다른 의료기관이 부여하는 질병 코딩의 불일치성을 분석하여 국가 보건 통계 질 향상을 위한 기초 자료로 활용하고자 시행하였다. 건강보험심사평가원 2014년 전체 환자 데이터셋(HIRA-NPS)에서 9,976,826건의 진료비 명세서를 연구 대상으로 하였다. 연구결과 의료기관의 이동 경로에 따라서 질병 코딩 불일치의 차이가 존재 하였고 불일치율은 보건기관 이외의 타 의료기관에서 보건기관으로 이동하였을 때 높아지는 경향이 발견되었고, 상급종합병원 간 이동하였을 때는 불일치율이 현저하게 낮았다. 본 연구의 의료기관 간 질병 코딩 불일치 현황 분석은 국내 의료기관에서 일관성 있는 질병 코딩이 이루어지기 위한 제도적 보완의 필요성을 시사하고 있다.

Keywords

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Fig. 1. Analysis model (Determination of analysis unit)

Table 1. Disagreement rate by patient characteristics

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Table 2. Disagreement rate by medical institutions characteristics

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Table 3. Disagreement rate due to movement of medical institutions

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Table 4. Disagreement rate when moved to the same department

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Table 5. Disagreement rate when moved to another department

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