N99: Postprocedural disorders of genitourinary system, not elsewhere classified

N99.0: Postprocedural renal failure

There are normally 2 kidneys in the body. They filter blood and create urine. They thus help to detoxify the body. Furthermore, the kidneys regulate blood pressure and the mineral levels in the blood, among other things.

The kidneys can sometimes stop working properly after certain treatments or examinations. This can happen after surgery, for example. The kidneys may also have been damaged by contrast agents. Certain tests involving contrast agents are better able to differentiate between tissues.

If the kidneys no longer work properly, you may experience a number of symptoms. You may only pass a small amount of urine or even none at all. The levels of minerals in the blood, for example, may also change. This may possibly make you very sick.