Isolated protein w focal and segmental glomerular lesions

This code signifies a kidney disorder characterized by the presence of protein in the urine (proteinuria) without other significant kidney abnormalities, specifically linked to focal and segmental glomerular sclerosis (FSGS). FSGS is a type of kidney disease that scars parts of the kidney's filtering units (glomeruli).

Apply this code when documentation confirms isolated proteinuria and a renal biopsy or other diagnostic findings indicate focal and segmental glomerular lesions as the underlying cause. This is typically used for patients diagnosed with primary FSGS presenting predominantly with proteinuria.

• Ensure documentation explicitly states "isolated proteinuria" and "focal and segmental glomerular lesions" or "FSGS."
• Do not use if other significant kidney diseases or systemic conditions are identified as the primary cause of proteinuria.
• Consider sequencing this code as the primary diagnosis when the proteinuria due to FSGS is the main reason for the encounter.