N06 – Isolated proteinuria with specified morphological lesion
ICD-10-CM 2027 diagnosis code · Glomerular diseases
ICD-10-CM code
N06
- Code
N06(claims format:N06)- Description
- Isolated proteinuria with specified morphological lesion
- 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 N06
N06 is a header code and cannot be used on claims. Choose the most specific code:
- N06.0 – Isolated proteinuria with minor glomerular abnormalityBillable
- N06.1 – Isolated proteinuria with focal and segmental glomerular lesionsBillable
- N06.2 – Isolated proteinuria with diffuse membranous glomerulonephritisHeader (more codes below)
- N06.3 – Isolated proteinuria with diffuse mesangial proliferative glomerulonephritisBillable
- N06.4 – Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritisBillable
- N06.5 – Isolated proteinuria with diffuse mesangiocapillary glomerulonephritisBillable
- N06.6 – Isolated proteinuria with dense deposit diseaseBillable
- N06.7 – Isolated proteinuria with diffuse crescentic glomerulonephritisBillable
- N06.8 – Isolated proteinuria with other morphologic lesionBillable
- N06.9 – Isolated proteinuria with unspecified morphologic lesionBillable
- N06.A – Isolated proteinuria with C3 glomerulonephritisBillable
Notes for N06
Excludes1 (not coded here):
- Proteinuria not associated with specific morphologic lesions (R80.0)
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.-)
Frequently asked questions
What is ICD-10 code N06?
N06 is the ICD-10-CM code for isolated proteinuria with specified morphological lesion, in the block N00-N08 (Glomerular diseases).
Is N06 a billable code?
No. N06 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.