N18: Chronic kidney disease

N18.3: Chronic kidney disease, stage 3

Chronic kidney disease, stage 3, is a medical condition where the kidneys, which help filter waste and excess fluid from the blood, are not working as well as normal, but have not yet reached complete failure. This moderate level of kidney damage is usually diagnosed through blood and urine tests that indicate decreased kidney function over a period of time. Common symptoms include fatigue, too much or too little urine output, swelling in the hands and feet, and trouble sleeping. This state is not easily noticeable as the body is still able to compensate for the reduced kidney function. The condition can progress slowly over time leading to further damage to the kidneys and a decrease in the overall health and wellbeing of the individual. High blood pressure and diabetes are the most common causes of chronic kidney disease, stage 3.