N04.B: Nephrotic syndrome with immune complex membranoproliferative glomerulonephritis (IC-MPGN)

New code · FY2026

Not billable: this is a header. Use one of the more specific codes below.

• New code, effective October 1, 2025 (FY2026).

Code breakdown

Coding notes

Includes (from N04)

• congenital nephrotic syndrome
• lipoid nephrosis

Codes under N04.B

• N04.B1 Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN)
• N04.B2 Nephrotic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN)

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All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.