1. Validation of insurance claims data on aetiology, surgical type and prosthesis for isolated valve surgery: a retrospective observational surgery
- Author
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Shao-Wei Chen, Victor Chien-Chia Wu, Pao-Hsien Chu, An-Hsun Chou, Chun-Yu Chen, Feng-Cheng Chang, Yi‐Hsin Chan, Chia-Pin Lin, Yu-Ting Cheng, Bo-Cheng Hou, and Jo-Ting Huang
- Subjects
Medicine - Abstract
Objectives Administrative database research is pivotal for developing guidelines in cardiovascular surgery and valvular heart disease. However, validation studies specific to Asia are lacking. This study validated the coding of valvular heart repair and replacement surgeries in Taiwan’s National Health Insurance (NHI) Research Database using International Classification of Diseases, Clinical Modification (ICD-CM) codes.Methods This retrospective observational study used data from the Chang Gung Research Database between 2015 and 2018, identifying 1171 patients using Taiwanese NHI reimbursement codes. The gold standard was defined as a blinded retrospective review of operation notes. Claims data, including ICD diagnostic codes, ICD procedural codes and NHI supply codes for surgical materials, were validated. Positive predictive values (PPVs) were calculated as the number of true positives divided by the total claims data.Results The PPVs (95% CI) for aortic valve (AV) surgery aetiologies were as follows: infectious endocarditis (IE), 94.1% (87.6%–97.7%); rheumatic heart disease (RHD), 88.2% (67.3%–97.5%); bicuspid AV, 93.3% (83.3%–98.1%); and degeneration, 91.7% (85.3%–95.8%). For mitral valve surgery, the surgery aetiologies and PPVs were IE, 93.2% (87.9%–96.6%); RHD, 94.9% (88.3%–98.2%); ischaemic mitral regurgitation, 87.5% (73.0%–95.6%); and degeneration, 88.4% (83.9%–92.0%). Surgical types generally exhibited higher PPVs, except for mechanical prostheses (
- Published
- 2025
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