2027 ICD-10-CM Diagnosis Code N06Isolated proteinuria with specified morphological lesion

ICD-10-CM Codes›N00–N99›N00-N08›N06

ICD-10-CM N06
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N06 is a non-billable ICD-10-CM category code for isolated proteinuria with specified morphological lesion, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N06.0, N06.1, N06.20, and N06.21.

Code Identity

ICD-10-CM Code
N06
Billable Status
No — Non-Billable Category
Code Describes
Isolated proteinuria with specified morphological lesion
Short Description
Isolated proteinuria with specified morphological lesion
Same as the full description in the CMS dataset.
Chapter
N00-N08
Glomerular diseases

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN00-N08Glomerular diseases
CategoryN06Isolated proteinuria with specified morphological lesion
This CodeN06Isolated proteinuria with specified morphological lesion

Specific Coding for Isolated proteinuria with specified morphological lesionOverview

Non-specific codes like N06 require more characters. Use one of these billable codes instead:

  • Use N06.0 for Isolated proteinuria with minor glomerular abnormality

  • Use N06.1 for Isolated proteinuria with focal and segmental glomerular lesions

  • N06.2 for Isolated proteinuria with diffuse membranous glomerulonephritis

  • Use N06.20 for Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified

  • Use N06.21 for Primary membranous nephropathy with isolated proteinuria

  • Use N06.22 for Secondary membranous nephropathy with isolated proteinuria

  • Use N06.29 for Other isolated proteinuria with diffuse membranous glomerulonephritis

  • Use N06.3 for Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis

  • Use N06.4 for Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritis

  • Use N06.5 for Isolated proteinuria with diffuse mesangiocapillary glomerulonephritis

  • Use N06.6 for Isolated proteinuria with dense deposit disease

  • Use N06.7 for Isolated proteinuria with diffuse crescentic glomerulonephritis

  • Use N06.8 for Isolated proteinuria with other morphologic lesion

  • Use N06.9 for Isolated proteinuria with unspecified morphologic lesion

  • Use N06.A for Isolated proteinuria with C3 glomerulonephritis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N06: its own notes plus those printed at block N00-N08 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On N06 itself
  • Proteinuria not associated with specific morphologic lesions (R80.0)
From Block N00-N08 Glomerular diseases applies to 107 codes
  • hypertensive chronic kidney disease (I12.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 14 (N00-N99) Diseases of the genitourinary system applies to 838 codes
  • 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)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From Block N00-N08 Glomerular diseases applies to 107 codes
  • any associated kidney failure (N17-N19).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name N06, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming N06: they are not reported together with it, unless the two conditions are unrelated.

  • R80.0 Isolated proteinuria
    isolated proteinuria with specific morphological lesion (N06.-)

Patient EducationClinical

Kidney Diseases

You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N06Overview

What is the ICD-10 code for isolated proteinuria with specified morphological lesion?

N06 is the ICD-10-CM category for isolated proteinuria with specified morphological lesion, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is N06 (Isolated proteinuria with specified morphological lesion) a billable code?

No. This is a category header that groups the codes for isolated proteinuria with specified morphological lesion, and headers cannot be submitted on claims. Claims for isolated proteinuria with specified morphological lesion need a more specific code from this category, such as N06.0, N06.1, and N06.20.

Can N06 be reported with R80.0?

Not as a rule. The Excludes1 note on N06 lists "Proteinuria not associated with specific morphologic lesions (R80.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).