ICD-10-CM
ICD-10 code for Disease, diseased dense deposit: N05.6
The ICD-10-CM index points "Disease, diseased dense deposit" to N05.6, Unspecified nephritic syndrome with dense deposit disease. N05.6 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in N05
A header groups codes and is not billed. A billable code is one you can report.
- N05Unspecified nephritic syndromeHeader
- N05.0Unspecified nephritic syndrome with minor glomerular abnormalityBillable
- N05.1Unspecified nephritic syndrome with focal and segmental glomerular lesionsBillable
- N05.2Unspecified nephritic syndrome with diffuse membranous glomerulonephritisBillable
- N05.3Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritisBillable
- N05.4Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritisBillable
- N05.5Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritisBillable
- N05.6Unspecified nephritic syndrome with dense deposit diseaseBillable
- N05.7Unspecified nephritic syndrome with diffuse crescentic glomerulonephritisBillable
- N05.8Unspecified nephritic syndrome with other morphologic changesBillable
- N05.9Unspecified nephritic syndrome with unspecified morphologic changesBillable
- N05.AUnspecified nephritic syndrome with C3 glomerulonephritisBillable
Excludes1
Excludes1 means these codes are not reported together.
From N05. A note on a category applies to every code under it.
Related pages
- N05.6 code detailsNotes, nearby codes, CMS-HCC group
- Category N05Every code under it
- Chapter 14Diseases of the genitourinary system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Disease, diseased dense deposit?
The ICD-10-CM index points "Disease, diseased dense deposit" to N05.6, Unspecified nephritic syndrome with dense deposit disease. N05.6 is a billable code.
Is N05.6 billable?
Yes. N05.6 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to N05.6?
The CDC tabular list gives 3 Excludes1 notes (not coded together) for N05.6 and the categories above it. They are listed on this page.
What chapter is N05.6 in?
Chapter 14. Diseases of the genitourinary system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.