ALB and acute kidney injury: Eight pertained to renal disease and monitoring (#6 and 8: acute kidney failure ICD-9 codes, #3, 5, and 12: abnormal sodium, chloride, and albumin labs, #10 and 11: disorders of fluid/electrolyte/acid-base ICD-9 code and WKF, and #15: hypokalemia), the labs in particular all being part of a basic renal panel.