N06

Non-Billable
ChapterN00–N99
Rankcategory
Official Description

Isolated proteinuria with specified morphological lesion

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 14: Diseases of the Genitourinary System (N00-N99).

CH14 Parent Instructions

Excludes2(Not included here)
  • 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)

N00-N08 Parent Instructions

Excludes1(Not coded here)
  • hypertensive chronic kidney disease (I12.-)
Code Also
  • any associated kidney failure (N17-N19).

Instructional Notes

Excludes1(Not coded here)
  • Proteinuria not associated with specific morphologic lesions (R80.0)

Clinical Hierarchy

CH14Diseases of the genitourinary system (N00-N99)
N00-N08Glomerular diseases (N00-N08)
N06Isolated proteinuria with specified morphological lesion
N06.0Isolated proteinuria with minor glomerular abnormality
N06.1Isolated proteinuria with focal and segmental glomerular lesions
N06.2Isolated proteinuria with diffuse membranous glomerulonephritis
N06.3Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis
N06.4Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritis
N06.5Isolated proteinuria with diffuse mesangiocapillary glomerulonephritis
N06.6Isolated proteinuria with dense deposit disease
N06.7Isolated proteinuria with diffuse crescentic glomerulonephritis
N06.8Isolated proteinuria with other morphologic lesion
N06.9Isolated proteinuria with unspecified morphologic lesion
N06.AIsolated proteinuria with C3 glomerulonephritis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N06:

blockN00-N08
Glomerular diseases (N00-N08)
View context instructions
chapterCH14
Diseases of the genitourinary system (N00-N99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to N06. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

17 raw paths
Nephropathy3 unique routes
membranous (diffuse)→N06(3 variants)
primary→N06
secondary→N06
Proteinuria14 unique routes
isolated(14 variants)
with glomerular lesion→N06(14 variants)
C3(3 variants)
glomerulonephritis→N06
glomerulopathy→N06(2 variants)
with dense deposit disease→N06
dense deposit disease→N06
diffuse(3 variants)
crescentic glomerulonephritis→N06
endocapillary proliferative glomerulonephritis→N06
mesangiocapillary glomerulonephritis→N06
focal and segmental hyalinosis or sclerosis→N06
membranous (diffuse)→N06(2 variants)
with diffuse membranous glomerulonephritis→N06
mesangial proliferative (diffuse)→N06
minimal change→N06
specified pathology NEC→N06

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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