Nephrotic syndrome with lesion of membranoproliferative glomerulonephritis

This code represents nephrotic syndrome, a kidney disorder characterized by proteinuria, hypoalbuminemia, hyperlipidemia, and edema, specifically when the underlying kidney damage is due to membranoproliferative glomerulonephritis (MPGN). MPGN involves inflammation and changes in the glomeruli, the tiny filters in the kidneys.

Use this code when documentation clearly indicates a diagnosis of nephrotic syndrome and specifies that the causative glomerular lesion is membranoproliferative glomerulonephritis, often confirmed by renal biopsy. This code is appropriate for both primary (idiopathic) and secondary forms of MPGN leading to nephrotic syndrome.

• Ensure documentation explicitly links nephrotic syndrome to membranoproliferative glomerulonephritis; avoid using for other types of glomerulonephritis.
• Do not code separately for nephrotic syndrome if the specific glomerular lesion is identified and linked.
• Consider additional codes for any associated systemic diseases (e.g., lupus, hepatitis C) if they are the cause of secondary MPGN.