Ac neph synd with idio imm membr prolif glomrlneph (IC-MPGN)

This code signifies a rapid onset of kidney inflammation characterized by hematuria, proteinuria, hypertension, and edema, specifically linked to idiopathic immune membranoproliferative glomerulonephritis. This particular form of MPGN is immune-mediated and its cause is unknown.

Apply this code when documentation clearly indicates a diagnosis of acute nephritic syndrome and specifies idiopathic immune membranoproliferative glomerulonephritis as the underlying cause. This diagnosis is typically supported by renal biopsy findings and clinical presentation.

• Ensure the documentation explicitly states "idiopathic immune" to differentiate from other forms of MPGN.
• Do not use this code for chronic or unspecified forms of membranoproliferative glomerulonephritis.
• Code any associated complications, such as acute kidney failure, separately.