All ICD10 Codes
Chapter 14

N00–N99: Diseases of the Genitourinary System

Diseases of the Genitourinary System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
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  • N03.2|

    Chronic nephritic syndrome with diffuse membranous glomerulonephritis

  • N03.3|

    Chronic nephritic syndrome with diffuse mesangial proliferative glomerulonephritis

  • N03.4|

    Chronic nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis

  • N03.5|

    Chronic nephritic syndrome with diffuse mesangiocapillary glomerulonephritis

  • N03.6|

    Chronic nephritic syndrome with dense deposit disease

  • N03.7|

    Chronic nephritic syndrome with diffuse crescentic glomerulonephritis

  • N03.8|

    Chronic nephritic syndrome with other morphologic changes

  • N03.9|

    Chronic nephritic syndrome with unspecified morphologic changes

  • N03.A|

    Chronic nephritic syndrome with C3 glomerulonephritis

  • N04|

    Nephrotic syndrome

  • N04.0|

    Nephrotic syndrome with minor glomerular abnormality

  • N04.1|

    Nephrotic syndrome with focal and segmental glomerular lesions

  • N04.2|

    Nephrotic syndrome with diffuse membranous glomerulonephritis

  • N04.20|

    Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified

  • N04.21|

    Primary membranous nephropathy with nephrotic syndrome

  • N04.22|

    Secondary membranous nephropathy with nephrotic syndrome

  • N04.29|

    Other nephrotic syndrome with diffuse membranous glomerulonephritis

  • N04.3|

    Nephrotic syndrome with diffuse mesangial proliferative glomerulonephritis

  • N04.4|

    Nephrotic syndrome with diffuse endocapillary proliferative glomerulonephritis

  • N04.5|

    Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis

  • N04.6|

    Nephrotic syndrome with dense deposit disease

  • N04.7|

    Nephrotic syndrome with diffuse crescentic glomerulonephritis

  • N04.8|

    Nephrotic syndrome with other morphologic changes

  • N04.9|

    Nephrotic syndrome with unspecified morphologic changes

  • N04.A|

    Nephrotic syndrome with C3 glomerulonephritis

  • N04.B|

    Nephrotic syndrome with immune complex membranoproliferative glomerulonephritis (IC-MPGN)

  • N04.B1|

    Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN)

  • N04.B2|

    Nephrotic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN)

  • N05|

    Unspecified nephritic syndrome

  • N05.0|

    Unspecified nephritic syndrome with minor glomerular abnormality

  • N05.1|

    Unspecified nephritic syndrome with focal and segmental glomerular lesions

  • N05.2|

    Unspecified nephritic syndrome with diffuse membranous glomerulonephritis

  • N05.3|

    Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritis

  • N05.4|

    Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis

  • N05.5|

    Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritis

  • N05.6|

    Unspecified nephritic syndrome with dense deposit disease

  • N05.7|

    Unspecified nephritic syndrome with diffuse crescentic glomerulonephritis

  • N05.8|

    Unspecified nephritic syndrome with other morphologic changes

  • N05.9|

    Unspecified nephritic syndrome with unspecified morphologic changes

  • N05.A|

    Unspecified nephritic syndrome with C3 glomerulonephritis

  • N06|

    Isolated proteinuria with specified morphological lesion

  • N06.0|

    Isolated proteinuria with minor glomerular abnormality

  • N06.1|

    Isolated proteinuria with focal and segmental glomerular lesions

  • N06.2|

    Isolated proteinuria with diffuse membranous glomerulonephritis

  • N06.20|

    Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified

  • N06.21|

    Primary membranous nephropathy with isolated proteinuria

  • N06.22|

    Secondary membranous nephropathy with isolated proteinuria

  • N06.29|

    Other isolated proteinuria with diffuse membranous glomerulonephritis

  • N06.3|

    Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis

  • N06.4|

    Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritis

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