N05 – Unspecified nephritic syndrome
ICD-10-CM 2027 diagnosis code · Glomerular diseases
ICD-10-CM code
N05
- Code
N05(claims format:N05)- Description
- Unspecified nephritic syndrome
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 14. Diseases of the genitourinary system (N00-N99)
- Block
- N00-N08 Glomerular diseases
Billable codes under N05
N05 is a header code and cannot be used on claims. Choose the most specific code:
- N05.0 – Unspecified nephritic syndrome with minor glomerular abnormalityBillable
- N05.1 – Unspecified nephritic syndrome with focal and segmental glomerular lesionsBillable
- N05.2 – Unspecified nephritic syndrome with diffuse membranous glomerulonephritisBillable
- N05.3 – Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritisBillable
- N05.4 – Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritisBillable
- N05.5 – Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritisBillable
- N05.6 – Unspecified nephritic syndrome with dense deposit diseaseBillable
- N05.7 – Unspecified nephritic syndrome with diffuse crescentic glomerulonephritisBillable
- N05.8 – Unspecified nephritic syndrome with other morphologic changesBillable
- N05.9 – Unspecified nephritic syndrome with unspecified morphologic changesBillable
- N05.A – Unspecified nephritic syndrome with C3 glomerulonephritisBillable
Notes for N05
Includes:
- glomerular disease NOS
- glomerulonephritis NOS
- nephritis NOS
- nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block N00-N08
Excludes1 (not coded here):
- hypertensive chronic kidney disease (I12.-)
Index terms for N05
Entries in the ICD-10-CM alphabetic index that lead to this code:
Frequently asked questions
What is ICD-10 code N05?
N05 is the ICD-10-CM code for unspecified nephritic syndrome, in the block N00-N08 (Glomerular diseases).
Is N05 a billable code?
No. N05 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.