ICD-10-CM 2027 diagnosis code

N06Isolated proteinuria with specified morphological lesion

Not billable — use a more specific code

N06 is a header code, so it can't be reported by itself. Choose one of the 11 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N06

N06 is the ICD-10-CM diagnosis code for isolated proteinuria with specified morphological lesion. It belongs to block N00-N08 (glomerular diseases) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 11 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: N06.0 (abnormality), N06.1 (lesions), N06.2 (glomerulonephritis), N06.3 (glomerulonephritis), N06.4 (glomerulonephritis), N06.5 (glomerulonephritis), N06.6 (disease), N06.7 (glomerulonephritis) and 3 more.

Don't report N06 together with the conditions in its Excludes1 note: Proteinuria not associated with specific morphologic lesions (R80.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under N06

Coding notes

Excludes1Not coded here — never report together with this code

Proteinuria not associated with specific morphologic lesions (R80.0)

Notes that apply from higher levels

Instructions written at a parent level also apply to N06.

Broader instructions also apply from N00-N08 Glomerular diseases and Chapter 14: Diseases of the genitourinary system.

Codes whose notes reference N06

R80.0Excludes1

Code history

2016
2017
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2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about N06

Is N06 billable?: No. N06 is a header code. Report one of its more specific subcodes instead.