Table 5 Sensitivity, specificity, PPV, and NPV of ICD-10-CA with 90-day definite TIA as reference standard
Diagnosis | Coding algorithm n (%) | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|---|
Definite TIA Prevalence 105 (25.2%) | Main position 79 (18.9%) | 41.9 [32.3, 51.9] | 88.8 [84.7, 92.1] | 55.7 [44.1, 66.9] | 82.0 [77.4, 85.9] |
Any position 99 (23.7%) | 47.6 [37.8, 57.6] | 84.3 [79.8, 88.2] | 50.5 [40.3, 60.7] | 82.7 [78.1, 86.7] | |
Main position +/− Q 122 (29.3%) | 54.3 [44.3, 64.0] | 79.2 [74.2, 83.5] | 46.7 [37.6, 56.0] | 83.7 [79.0. 87.8] | |
Any position +/− Q 151 (36.2%) | 60.0 [50.0, 69.4] | 71.8 [66.5, 76.7] | 41.7 [33.8, 50.0] | 84.2 [79.3, 88.4] |