Validation of Acute Myocardial Infarction and Heart Failure Diagnoses in Hospitalized Patients With the Nationwide Claim-Based JROAD-DPC Database
Michikazu Nakai, Yoshitaka Iwanaga, Yoko Sumita, Koshiro Kanaoka, Rika Kawakami, Masanobu Ishii, Keiji Uchida, Nobutaka Nagano, Takeo Nakayama, Kunihiro Nishimura, Kazufumi Tsuchihashi, Kazuo Kimura, Yoshihiro Saito, Kenichi Tsujita, Hisao Ogawa, Yoshihiro Miyamoto, Satoshi Yasuda, on the behalf of the JROAD Investigators
Abstract
Background:Big data systems such as diagnosis procedure combination (DPC) datasets have recently been used for research purposes. However, there have been few validation studies to determine the accuracy of diagnoses. The aim of this study was to validate and evaluate 2 diagnoses, namely acute myocardial infarction (AMI) and heart failure (HF), using International Classification of Diseases, 10th revision (ICD-10) codes in the Japanese Registry Of All cardiac and vascular Disease (JROAD)-DPC database.