Papers › A General Knowledge Injection Framework for ICD Coding

A General Knowledge Injection Framework for ICD Coding

24 May 2025arXiv:2505.18708archive 2025-07-28

Xu Zhang, Kun Zhang, Wenxin Ma, Rongsheng Wang, Chenxu Wu, Yingtai Li, S. Kevin Zhou

ICD Coding aims to assign a wide range of medical codes to a medical text document, which is a popular and challenging task in the healthcare domain. To alleviate the problems of long-tail distribution and the lack of annotations of code-specific evidence, many previous works have proposed incorporating code knowledge to improve coding performance. However, existing methods often focus on a single type of knowledge and design specialized modules that are complex and incompatible with each other, thereby limiting their scalability and effectiveness. To address this issue, we propose GKI-ICD, a novel, general knowledge injection framework that integrates three key types of knowledge, namely ICD Description, ICD Synonym, and ICD Hierarchy, without specialized design of additional modules. The comprehensive utilization of the above knowledge, which exhibits both differences and complementarity, can effectively enhance the ICD coding performance. Extensive experiments on existing popular ICD coding benchmarks demonstrate the effectiveness of GKI-ICD, which achieves the state-of-the-art performance on most evaluation metrics. Code is available at https://github.com/xuzhang0112/GKI-ICD.

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xuzhang0112/GKI-ICD officialmentioned in papermentioned on GitHubpytorch report

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Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Medical Code Prediction MIMIC-III GKI-ICD Macro-AUC 96.2 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD Macro-F1 12.3 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD Micro-AUC 99.3 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD Micro-F1 61.2 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD Precision@15 62.4 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD Precision@8 77.7 #1 of 18 Archive leaderboard report
Medical Code Prediction MIMIC-III GKI-ICD mAP 66.1 #1 of 18 Archive leaderboard report

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