Karnofsky Performance Scale
KDIGO diagnostic criteria for acute kidney injury
Khorana risk score for venous thromboembolism in patients with cancer
Kidney Failure Risk Equation
Killip classification for heart failure
King's College Criteria for acetaminophen-induced acute liver failure
King's College Criteria for non-acetaminophen-induced acute liver failure
Knee Quality of Life 26-item questionnaire (KQoL-26)
Kobayashi score for predicting unresponsiveness to IVIG therapy
Kocher criteria for septic arthritis