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Table 4 Accuracy of ICD codesa in sampled patients

From: Validation of diagnosis codes to identify side of colon in an electronic health record registry

Accuracy of ICD codes, % (95% CI) Left Right Transverse Right/Transverse
Sensitivity 63 (52, 72) 49 (37, 62) 58 (29, 84) 52 (40, 63)
Specificity 92 (85, 96) 98 (93, 99) 98 (94, 99) 96 (90, 98)
Positive predictive value 89 (78, 95) 92 (76, 98) 64 (32, 88) 89 (76, 96)
Negative predictive value 72 (63, 79) 79 (72, 85) 97 (94, 99) 75 (68, 82)
  1. CI Confidence interval, ICD International Classification of Diseases
  2. aSee Table 5 in Appendix A