Proteinuria

This code signifies the presence of an abnormal amount of protein in the urine, indicating potential kidney dysfunction or damage. It is a common finding in various renal and systemic diseases, often serving as an early marker of kidney pathology.

Use this code when laboratory tests confirm the excretion of excess protein in the urine. This is typically documented through urinalysis results showing proteinuria, or 24-hour urine collections quantifying protein levels. It is often identified during routine physical examinations or when evaluating symptoms such as edema or foamy urine.

• Always seek to identify and code the underlying cause of the proteinuria if known (e.g., diabetic nephropathy, glomerulonephritis).
• Do not use this code if the proteinuria is transient and benign, such as orthostatic proteinuria, unless specifically documented as persistent.
• Consider sequencing this code after the definitive diagnosis for the condition causing the proteinuria, if applicable.