Validation of I71.3 code for ruptured abdominal aortic aneurysm in Korea: misplaced diagnosis in claims data.

Annals of surgical treatment and research(2023)

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Abstract
The analysis of I71.3 code for rAAA showed that only 43.0% were true rAAA and the remaining 57.0% were misdiagnosed. This indicates that the I71.3 code is overestimated in National Health Insurance-based data and that the true incidence of rAAA could be much lower.
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Key words
Aortic rupture,Diagnostic errors,Insurance claim review,International classification of diseases,Prevalence
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