Nephrotic syndrome w diffuse mesangial prolif glomrlneph

This code signifies a specific type of nephrotic syndrome characterized by diffuse mesangial proliferative glomerulonephritis. This renal pathology involves widespread proliferation of mesangial cells within the glomeruli, leading to significant proteinuria, hypoalbuminemia, edema, and hyperlipidemia.

Apply this code when documentation explicitly states a diagnosis of nephrotic syndrome with a biopsy-confirmed finding of diffuse mesangial proliferative glomerulonephritis. This is typically used for patients undergoing renal biopsy to determine the specific cause of their nephrotic syndrome.

• Ensure the pathology report specifically identifies "diffuse mesangial proliferative glomerulonephritis" as the underlying cause of nephrotic syndrome.
• Do not use this code if the biopsy indicates other forms of glomerulonephritis, such as focal segmental glomerulosclerosis or membranous nephropathy.
• Code any associated complications of nephrotic syndrome, such as acute kidney injury or thrombosis, separately.