N04.B1 Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN)

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from N04 Nephrotic syndrome

Includes

• congenital nephrotic syndrome
• lipoid nephrosis

MS-DRG index

Defines the logic of DRG(s) 698-700 in MDC 11.

Code annotations containing back-references to N04.B1

Back-references to N04

• Type 1 Excludes: Q63 Other congenital malformations of kidney ("congenital nephrotic syndrome (N04.-)")

Diagnosis Index entries for N04.B1

• Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) › with › glomerular lesion › idiopathic immune membranoproliferative glomerulonephritis (IC-MPGN)

Nearby codes

• N04.7 Nephrotic syndrome with diffuse crescentic glomerulonephritis
• N04.8 Nephrotic syndrome with other morphologic changes
• N04.9 Nephrotic syndrome with unspecified morphologic changes
• N04.A Nephrotic syndrome with C3 glomerulonephritis
• N04.B Nephrotic syndrome with immune complex membranoproliferative glomerulonephritis (IC-MPGN)
• N04.B1 Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN) (this code)
• N04.B2 Nephrotic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN)