N04.21

✓ Billable

Primary membranous nephropathy with nephrotic syndrome

Diseases of the genitourinary system (N00-N99)

Also Known As

Idiopathic membranous nephropathy with nephrotic syndrome

✅ No additional coding notes for N04.21

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Code Information

CodeN04.21

BillableYes

ParentN04.2

CategoryDiseases of the genitourinary system (N00-N99)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)