Isolated proteinuria

This code signifies the presence of protein in the urine without any other associated urinary abnormalities or systemic conditions. It indicates a finding of proteinuria that is not yet linked to a specific kidney disease or other underlying cause.

Use this code when laboratory tests confirm proteinuria, and the provider's documentation does not specify a particular renal lesion or other systemic condition causing the proteinuria. This often applies to initial findings or when further investigation is pending to determine the etiology.

• Ensure documentation explicitly states "isolated proteinuria" or indicates proteinuria without other specified renal involvement.
• Do not use this code if the documentation identifies a specific morphological lesion of the kidney, even if proteinuria is present.
• Consider sequencing this code as a primary diagnosis when the proteinuria is the reason for the encounter and its cause is undetermined.