Renal Insufficiency [Disease/Finding] Acute Kidney Injury [Disease/Finding] M0541307 Acute Kidney Injury Acute Kidney Injury C2609414 Acute Renal Injury 1085890 N0000182224 D058186 CMSHM0541307 Abrupt reduction in kidney function defined as an absolute increase in serum CREATININE of more than or equal to 0.3. mg/dl, a percentage increase in serum creatinine of more than or equal to 50%, or a reduction in urine output. Acute kidney injury encompasses the entire spectrum of the syndrome including acute kidney failure; ACUTE KIDNEY TUBULAR NECROSIS; and other less severe conditions.