N00: Acute nephritic syndrome
Codes under N00 (Acute nephritic syndrome). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| N00.0 | Acute nephritic syndrome with minor glomerular abnormality | ✓ |
| N00.0 | Acute nephritic syndrome with minor glomerular abnormality | ✓ |
| N00.1 | Acute nephritic syndrome with focal and segmental glomerular lesions | ✓ |
| N00.1 | Acute nephritic syndrome with focal and segmental glomerular lesions | ✓ |
| N00.2 | Acute nephritic syndrome with diffuse membranous glomerulonephritis | ✓ |
| N00.2 | Acute nephritic syndrome with diffuse membranous glomerulonephritis | ✓ |
| N00.3 | Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritis | ✓ |
| N00.3 | Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritis | ✓ |
| N00.4 | Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis | ✓ |
| N00.4 | Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis | ✓ |
| N00.5 | Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis | ✓ |
| N00.5 | Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis | ✓ |
| N00.6 | Acute nephritic syndrome with dense deposit disease | ✓ |
| N00.6 | Acute nephritic syndrome with dense deposit disease | ✓ |
| N00.7 | Acute nephritic syndrome with diffuse crescentic glomerulonephritis | ✓ |
| N00.7 | Acute nephritic syndrome with diffuse crescentic glomerulonephritis | ✓ |
| N00.8 | Acute nephritic syndrome with other morphologic changes | ✓ |
| N00.8 | Acute nephritic syndrome with other morphologic changes | ✓ |
| N00.9 | Acute nephritic syndrome with unspecified morphologic changes | ✓ |
| N00.9 | Acute nephritic syndrome with unspecified morphologic changes | ✓ |
| N00.A | Acute nephritic syndrome with C3 glomerulonephritis | ✓ |
| N00.A | Acute nephritic syndrome with C3 glomerulonephritis | ✓ |
| N00.B | Acute nephritic syndrome with immune complex membranoproliferative glomerulonephritis | — |
| N00.B | Acute nephritic syndrome with immune complex membranoproliferative glomerulonephritis | — |
| N00.B1 | Acute nephritic syndrome with idiopathic immune membranoproliferative glomerulonephritis (IC-MPGN) | ✓ |
| N00.B1 | Acute nephritic syndrome with idiopathic immune membranoproliferative glomerulonephritis (IC-MPGN) | ✓ |
| N00.B2 | Acute nephritic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN) | ✓ |
| N00.B2 | Acute nephritic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN) | ✓ |
Frequently asked questions
What is ICD-10-CM code N00?
N00 is an ICD-10-CM category covering Acute nephritic syndrome. It contains 28 more specific diagnosis codes, 26 of which are billable.
Is N00 a billable code?
No — N00 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example N00.0 — Acute nephritic syndrome with minor glomerular abnormality). 26 of the 28 codes under N00 are billable.
What codes fall under N00?
N00 includes N00.0, N00.0, N00.1, N00.1, N00.2, plus 23 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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