N05

Non-Billable

ChapterN00–N99

Rankcategory

Official Description

Unspecified nephritic syndrome

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

Includes

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

Excludes1(Not coded here)

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

Clinical Hierarchy

CH14Diseases of the genitourinary system (N00-N99)

N00-N08Glomerular diseases (N00-N08)

N05Unspecified nephritic syndrome

N05.0Unspecified nephritic syndrome with minor glomerular abnormality

N05.1Unspecified nephritic syndrome with focal and segmental glomerular lesions

N05.2Unspecified nephritic syndrome with diffuse membranous glomerulonephritis

N05.3Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritis

N05.4Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis

N05.5Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritis

N05.6Unspecified nephritic syndrome with dense deposit disease

N05.7Unspecified nephritic syndrome with diffuse crescentic glomerulonephritis

N05.8Unspecified nephritic syndrome with other morphologic changes

N05.9Unspecified nephritic syndrome with unspecified morphologic changes

N05.AUnspecified nephritic syndrome with C3 glomerulonephritis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N05:

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 N05. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths

Abnormal, abnormality, abnormalities1 unique routes

glomerular, minor→N05

Change (s) (in) (of)1 unique routes

minimal (glomerular)→N05

Disease, diseased3 unique routes

dense deposit→N05

glomerular

minimal change→N05

Klebs'→N05

Disorder (of)1 unique routes

glomerular (in)→N05