Abstract
Comprehensive evaluation system of medical treatment fees by Diagnosis Procedure Combination (below DPC) is a system to pay a certain amount depending on the conditions of the disease names and so on that targets the acute hospitalization. DPC code 040080 includes pneumonia, acute bronchitis and acute bronchiolitis. It branched the correspondence by age condition in 2012 and led to small sum to less than 15 years old (Children), large sum to 15 years old or more (Adults). Then I examined the validity of the branch by age condition As a result, I can see the difference in the number of disease names, length of hospital stay, the volume score and comprehensive score. In other words, acute bronchitis and bronchiolitis are often in children, pneumonia is often in adults. Length of hospital stay is short-term in children., adults are long-term. Comprehensive score is higher than volume score in children and adults is the reverse. Through these, it was considered DPC revision of fiscal 2012 was a correct decision as the direction for the DPC code 040080. By applying the decision tree analysis, without assuming in advance and I can evaluate the validity of branch in children and adults which can be seen the reality of medical fees and medical contents of DPC classification.
