N04.5 vs N04.A
N04.5 (Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis) compared with N04.A (Nephrotic syndrome with C3 glomerulonephritis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. N04.5 carries an Excludes1 note covering N04.A: “Nephrotic syndrome with C3 glomerulonephritis (N04.A)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. N04.5 carries an Excludes1 note covering N04.A: “Nephrotic syndrome with C3 glomerulopathy (N04.A)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| N04.5Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis | N04.ANephrotic syndrome with C3 glomerulonephritis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis is a billable ICD-10-CM diagnosis code (N04.5). | Nephrotic syndrome with C3 glomerulonephritis is a billable ICD-10-CM diagnosis code (N04.A). |
| Includes | congenital nephrotic syndrome lipoid nephrosis | congenital nephrotic syndrome lipoid nephrosis Nephrotic syndrome with C3 glomerulopathy |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources