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Table 2 Agreement between the two external coders for the most frequently selected diagnoses

From: Reliability of diagnostic coding in intensive care patients

  Number Kappa 95% CI
J960, acute respiratory failure 63 0.42 0.23–0.61
J159, bacterial pneumonia, unspecified 22 0.49 0.22–0.76
R402, coma, unspecified 21 0.82 0.63–1.00
I501, left ventricular failure 17 0.67 0.42–0.94
  1. CI, confidence interval.