Table 4.

Agreement rates between EHR and chart review for ICD-9 codes related to nephrology diagnosis and selected comorbid conditions

Conditionκ Statistic (95% CI)SensitivitySpecificityPositive Predictive ValueNegative Predictive Value
Diabetic nephropathy0.75 (0.55 to 0.95)85%90%90%85%
Glomerulonephritis0.85 (0.69 to 1.00)95%90%90%85%
Polycystic kidney disease0.90 (0.77 to 1.00)100%90%90%100%
Diabetes0.90 (0.77 to 1.00)91%100%100%90%
Hypertension0.45 (0.20 to 0.70)65%90%95%50%
Hyperlipidemia0.85 (0.69 to 1.00)95%90%90%95%
Coronary artery disease0.60 (0.35 to 0.85)80%80%80%80%
Congestive heart failure0.85 (0.69 to 1.00)87%100%100%85%
Cerebrovascular disease0.90 (0.76 to 1.00)95%95%95%95%