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N02.B4

Billable

Recurrent and persistent immunoglobulin A nephropathy with diffuse membranous glomerulonephritis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Repeated episodes of blood in the urine from IgA nephropathy with widespread thickening of the kidney filter membranes affecting most of the kidney tissue.

Coding Tips

  • B4 indicates diffuse membranous pattern; confirm pathology shows membrane thickening without significant proliferation
  • Document extent of glomerular involvement in the biopsy report

Code Hierarchy

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