Extrarenal uremia

This code signifies the presence of uremia, a buildup of waste products in the blood, that is not primarily caused by kidney failure. Instead, it indicates that the underlying cause of the uremic state originates from factors outside the kidneys, such as severe dehydration, gastrointestinal bleeding, or obstructive uropathy.

Use this code when documentation clearly indicates elevated blood urea nitrogen (BUN) and creatinine levels, along with clinical signs of uremia, and the physician explicitly states that the uremia is "extrarenal" or due to a non-renal cause. This code is appropriate when the kidneys themselves are functionally intact but are unable to excrete waste products effectively due to external factors.

• Ensure physician documentation explicitly states "extrarenal uremia" or identifies a non-renal cause for the uremia.
• Do not use this code if the uremia is due to intrinsic kidney disease; instead, code the specific kidney condition.
• Always code the underlying extrarenal cause of the uremia first, if known and documented.