Large Scale Diagnostic Code Classification for Medical Patient Records

Abstract

A critical, yet not very well studied problem in medical applications is the issue of accurately labeling patient records according to diagnoses and procedures that patients have undergone. This labeling problem, known as coding, consists of assigning standard medical codes (ICD9 and CPT) to patient records. Each patient record can have several corresponding labels/codes, many of which are correlated to specific diseases. The current, most frequent coding approach involves manual labeling, which requires considerable human effort and is cumbersome for large patient databases. In this paper we view medical coding as a multi-label classification problem, where we treat each code as a label for patient records. Due to government regulations concerning patient medical data, previous studies in automatic coding have been quite limited. In this paper, we compare two efficient algorithms for diagnosis coding on a large patient dataset. 1

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