N05 Unspecified nephritic syndrome

Category / Non-billable header 11 subcodes

Block: Glomerular diseases (N00-N08)

Includes

  • glomerular disease NOS
  • glomerulonephritis NOS
  • nephritis NOS
  • nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8

Excludes 1 (cannot be coded together)

  • nephropathy NOS with no stated morphological lesion (N28.9)
  • renal disease NOS with no stated morphological lesion (N28.9)
  • tubulo-interstitial nephritis NOS (N12)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
N05..0 Unspecified nephritic syndrome with minor glomerular abnormality Yes
N05..1 Unspecified nephritic syndrome with focal and segmental glomerular lesions Yes
N05..2 Unspecified nephritic syndrome with diffuse membranous glomerulonephritis Yes
N05..3 Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritis Yes
N05..4 Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis Yes
N05..5 Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritis Yes
N05..6 Unspecified nephritic syndrome with dense deposit disease Yes
N05..7 Unspecified nephritic syndrome with diffuse crescentic glomerulonephritis Yes
N05..8 Unspecified nephritic syndrome with other morphologic changes Yes
N05..9 Unspecified nephritic syndrome with unspecified morphologic changes Yes
N05..A Unspecified nephritic syndrome with C3 glomerulonephritis Yes

Last reviewed: September 2026