疾病および関連保健問題の国際統計分類第11回改訂版（ICD-11）フィールドトライアルにおけるコーディング結果の一致性の評価

抄録

Objectives: The revised version of the ICD-10 is the recently developed ICD-11, which is expected to significantly impact the quality of coding. The purpose of present study is evaluating coding in ICD-11 field trial in Japan.

Methods: We conducted a field trial in 2017 to evaluate the morbidity line coding quality of 19 cases by comparing them to the corresponding gold standard established by the WHO. The respective relationships between the accuracy rate and the number of Gold Standard (GS) codes, number of digits in the GS codes, number of digits in the GS first codes, presence of Y codes, presence of Z codes, and presence of extension codes were analyzed.

Results: Lower accuracy rates were observed in the case of an extension code or multiple codes. Additionally, the application of Gwet's AC1 revealed low agreement for the cases requiring extension codes.

Conclusion: We need to develop effective methods for educating practitioners about proper application of the extension codes provided in ICD-11. There is a need to conduct field trials in the Japanese language prior to its application in Japan.