Nephrotic syndrome with lesion of proliferative glomerulonephritis

This code signifies a specific type of nephrotic syndrome characterized by damage to the kidney's filtering units (glomeruli) due to proliferative glomerulonephritis. Patients typically present with significant proteinuria, hypoalbuminemia, edema, and hyperlipidemia, with biopsy confirming the proliferative glomerular lesion.

Apply this code when documentation explicitly states nephrotic syndrome and identifies proliferative glomerulonephritis as the underlying cause of the glomerular lesion. This diagnosis is often established through renal biopsy findings.

• Ensure documentation specifies "proliferative" glomerulonephritis; other types of glomerulonephritis causing nephrotic syndrome would use different codes.
• Do not use this code for nephrotic syndrome without a documented underlying glomerular lesion or if the lesion is non-proliferative.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter or hospitalization.