Orthostatic proteinuria, unspecified

This code signifies the presence of protein in the urine that appears only when the individual is in an upright position, resolving when recumbent. It indicates a benign, intermittent proteinuria without an identified underlying renal or systemic disease.

Use this code when documentation confirms proteinuria that is position-dependent and no other cause for the proteinuria has been identified. This diagnosis is typically made after a split urine collection (e.g., daytime vs. nighttime samples) demonstrates elevated protein only in the daytime sample.

• Ensure documentation explicitly states "orthostatic" or "postural" proteinuria and that no other renal pathology is noted.
• Do not use this code if a specific cause for the proteinuria (e.g., diabetic nephropathy, glomerulonephritis) has been identified.
• This is a diagnosis of exclusion; other forms of proteinuria should be ruled out before assigning this code.