Validation of I71.3 code for ruptured abdominal aortic aneurysm in Korea: misplaced diagnosis in claims data.
Eun-Ah JoSujeong SeongSanghyun AhnHyejin MoIn-Mok JungHyo Kee KimHyun-Min KoAhram HanSang-Il MinSeung-Kee MinPublished in: Annals of surgical treatment and research (2023)
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.