ICD-10-CM · Chapter 14 · N00-N99
N03 Chronic nephritic syndrome
Includes
- chronic glomerular disease
- chronic glomerulonephritis
- chronic nephritis
Excludes 1 (cannot be coded together)
- chronic tubulo-interstitial nephritis (N11.-)
- diffuse sclerosing glomerulonephritis (N05.8-)
- nephritic syndrome NOS (N05.-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| N03..0 | Chronic nephritic syndrome with minor glomerular abnormality | Yes |
| N03..1 | Chronic nephritic syndrome with focal and segmental glomerular lesions | Yes |
| N03..2 | Chronic nephritic syndrome with diffuse membranous glomerulonephritis | Yes |
| N03..3 | Chronic nephritic syndrome with diffuse mesangial proliferative glomerulonephritis | Yes |
| N03..4 | Chronic nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis | Yes |
| N03..5 | Chronic nephritic syndrome with diffuse mesangiocapillary glomerulonephritis | Yes |
| N03..6 | Chronic nephritic syndrome with dense deposit disease | Yes |
| N03..7 | Chronic nephritic syndrome with diffuse crescentic glomerulonephritis | Yes |
| N03..8 | Chronic nephritic syndrome with other morphologic changes | Yes |
| N03..9 | Chronic nephritic syndrome with unspecified morphologic changes | Yes |
| N03..A | Chronic nephritic syndrome with C3 glomerulonephritis | Yes |
Last reviewed: September 2026