ICD-11 definition : Anuria means nonpassage of urine, in practice is defined as passage of less than 50
milliliters of urine in a day. Oliguria is the low output of urine. It is clinically
classified as an output below 300-500ml/day.;
Anuria means nonpassage of urine, in practice is defined as passage of less than 50
milliliters of urine in a day. Oliguria is the low output of urine. It is clinically
classified as an output below 300-500ml/day.