• Journal of Preventive Medicine and Public Health
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• v.31 no.3 s.62
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• pp.471-480
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• 1998

This study was undertaken in order to estimate the accuracy of disease code of the Korean National Medical Insurance Data and disease the characteristics related to the accuracy. To accomplish these objectives, 2,431 cases coded as notifiable acute communicable diseases (NACD) were randomly selected from 1994 National Medical Insurance data file and family medicine specialists reviewed the medical records to confirm the diagnostic accuracy and investigate the related factors. Major findings obtained from this study are as follows : 1. The accuracy rate of disease code of NACD in National Medical Insurance data was very low, 10.1% (95% C.I. : 8.8-11.4). 2. The reasons of inaccuracy in disease code were 1) claiming process related administrative error by physician and non-physician personnel in medical institutions (41.0%), 2) input error of claims data by key punchers of National Medical Insurer (31.3%) and 3) diagnostic error by physicians (21.7%). 3. Characteristics significantly related with lowering the accuracy of disease code were location and level of the medical institutions in multiple logistic regression analysis. Medical institutions in Seoul showed lower accuracy than those in Kyonngi, and so did general hospitals, hospitals and clinics than tertiary hospitals. Physician related characteristics significantly lowering disease code accuracy of insurance data were sex, age group and specialty. Male physicians showed significantly lower accuracy than female physicians; thirties and fortieg age group also showed significantly lower accuracy than twenties, and so did general physicians and other specialists than internal medicine/pediatric specialists. This study strongly suggests that a series of policies like 1) establishment of peer review organization of National Medical Insurance data, 2) prompt nation-wide expansion of computerized claiming network of National Medical Insurance and 3) establishment and distribution of objective diagnostic criteria to physicians are necessary to set up a national disease surveillance system utilizing National Medical Insurance claims data.

• Journal of Preventive Medicine and Public Health
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• v.24 no.3 s.35
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• pp.265-278
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• 1991

This study was to examine the effects of insurance coverage on the utilization of public health institutions and to identify the factors associated with the utilization. The data were obtained from household interview surveys conducted twice in Hwachun Gun, Kangwon Do. The time period covered in the first survey was December $17{\sim}31$, 1987, before the implementation of regional medical insurance for the self-employed, and that of the second survey was January 28 $\sim$ Febuary 11, 1990, after its implementation. Major findings emerged from the analysis can be summarized as follows (1) Medical care utilization of rural people markedly increased after they were covered by medical insurance. The insurance coverage increased the utilization of public health institutions as well, and this increase was mainly attributable to the utilization by chronically ill patients. (2) Between 1987 and 1990, the proportion of the utilization of public health institutions over whole medical care utilization decreased. But the proportion increased for chronically ill patients covered by regional medical insurance during the same time span. (3) The results of logistic regression suggested that the rural self-employed utilized public health institutions at an increased rate after they were covered by medical insurance. It was also indicated that the increase resulted from the utilization by chronically ill patients. (4) The relative importance of public health institutions for rural medical care decreased after the implementation of regional medical insurance. But considering that the utilization of public health institutions by chronically ill patients increased after insurance coverage, attention should be directed to improving the capability of public health institutions to control chronic degenerative diseases.

• The Journal of the Korean life insurance medical association
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• v.30 no.1
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• pp.8-10
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• 2011

• The Korean Society of Law and Medicine
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• v.8 no.1
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• pp.137-177
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• 2007

The medical expenses review system in Korea has developed under fee-for-service system with its own unique structure. The importance of reviewing medical expenses has been emphasized, as the size of medical expenditures moving through the health insurance legal context and its weight in the national economy have increased very rapidly. It is, however, analyzed that the feuds and arguments continue among the stakeholders for the lack of laws supporting the medical expenses review system. The medical expenses review is a series of administrative procedures, deciding whether claims from medical care institutions to the insurer are legal and valid or not. It mainly controls the increase of unnecessarily excessive health insurance claim and prevents fraudulent claim and abuse and checks the less use or unsuitable use of medical resources. It also works a function guarantees medical benefits for the appropriate treatment according to the object of health insurance system as a social insurance scheme. The dispute on legal base of the medical expenses review is about the source of law in the medical expenses review. There are the Health Insurance Act and administrative laws as jus scriptum and the guidelines of review as administrative orders. The medical expenses review should reflect various factors, such as the development of medical healthcare technologies, the health expenditures distribution, the financial situation of the health insurance, and the evaluation on the level of appropriate benefits. It is also likely to adapt to the traits of characters of medicine, and trends and transition, Besides it should judge the legality and the validity of medical benefits expenditures by synthesizing these all factors. And the evaluation system of appropriateness of medical benefits was administrative procedure which was consecutive with reviewing the medical expenses system and it was intended to make up for the result of reviewing the medical expenses in more comprehensive levels.

• Journal of Preventive Medicine and Public Health
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• v.33 no.1
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• pp.76-82
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• 2000

Objectives : We attempted to assess He accuracy of ICD codes for cerebrovascular diseases in medical insurance claims (ICMIC) and to investigate the reasons for error. This study was designed as a preliminary study to establish a nationwide surveillance system. Methods : A total of 626 patients with medical insurance claims who indicated a diagnosis of cerebrovascular diseases during the period from 1993 to 1997 was selected from the Korea Medical Insurance Corporation cohort (KMIC cohort: 115,600 persons). The KMIC cohort was 10% of those insured who had taken health examinations in 1990 and 1992 consecutively. The registered medical record administrators were trained in the survey technique and gathered data from March to May 1999. The definition of cerebrovascular diseases in this study included cases which met ore of two criteria (Minnesota, WHO) or 'definite stroke' in CT/MRI finding. We questioned the medical record administrators to explain the error if the final diagnoses were not coded as stroke. Results : The accuracy rate of the ICMIC was 83.0% (425 cases) Medical records were not available for 8.2% (51 cases) due to the closing of hospitals, the absence of a computer system or omission of medical record, etc. Sixty-three cases (10.0%) were classified as impossible to interpret due to insufficient records in 'major clinical symptoms' or 'neurological deficits'. The most common reason was 'to meet review criteria of medical insurance benefits (52.9%)'. The department where errors in the ICMIC occurred most frequently was the department for medical insurance claims in the hospital. Conclusion : The accuracy rate of the ICMIC was 83.0%.

• The Journal of the Korean life insurance medical association
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• v.1 no.1
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• pp.57-64
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• 1984

• The Korean Society of Law and Medicine
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• v.10 no.2
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• pp.37-82
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• 2009

Korea has gained the much more performances in the fields of pubic health laws and related policies on the basis of the substantial economic achievements. In 1977, the social medical insurance was established for companies with more than 500 employees, and in 1989, Korea successfully achieved the national medical insurance system covering the total population within only 12 years beginning with multiple insurers. There remained some problems, however, to be improved such as both the low level of contribution rates and benefit packages due to the inefficiency in utilizing limited medical resources. In 2000, all insurers were unified into a single insurer (National Health Insurance Corporation), and special independent Health Insurance Review & Assessment Service (HIRA) was also established. From the origin of medical insurance system in 1977, the Korean reimbursement system has been fee-for-service system, and after the establishment of HIRA, it has been providing objective and expert medical cost review services and health quality assessment services.

• The Journal of the Korean life insurance medical association
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• v.16
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• pp.23-28
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• 1997

• The Journal of the Korean life insurance medical association
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• v.16
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• pp.21-22
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• 1997

• The Journal of the Korean life insurance medical association
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• v.16
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• pp.17-19
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• 1997