Positive predictive value of the diagnostic code for hyperkalaemia in 2017
| Non-laboratory parameters for defining hyperkalaemia | Total | No of patients with hyperkalaemia as defined by laboratory test value (%, 95% CI) | |
| Serum potassium ≥5 mEq/L | Serum potassium ≥5.5 mEq/L | ||
| ICD-10 E875 | 149 | 109 (73.2, 66.0 to 80.3) | 64 (43.0, 35.0 to 50.9) |
| ICD-10 E875+laboratory test order for serum potassium | 129 | 109 (85.0, 78.3 to 90.7) | 64 (49.6, 41.0 to 58.2) |