2026 ICD-10-CM Diagnosis Code N06.20Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified

ICD-10-CM Codes›N00–N99›N00-N08›N06

ICD-10-CM N06.20
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N06.20 is a billable ICD-10-CM diagnosis code for isolated proteinuria with diffuse membranous glomerulonephritis, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 698 through 700. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nephritis; nephrosis; renal sclerosis and Proteinuria.

Code Identity

ICD-10-CM Code
N06.20
Billable Status
Yes — Valid for Submission
Code Describes
Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified
Short Description
Isolated protein with diffuse membranous glomrlneph, unsp
Parent Code
N06.2
Isolated proteinuria with diffuse membranous glomerulonephritis

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN00-N08Glomerular diseases
CategoryN06Isolated proteinuria with specified morphological lesion
This CodeN06.20Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Membranous nephropathy, NOS

Type 1 Excludes

  • membranous nephropathy NOS with nephrotic syndrome N04.20

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Nephropathy
      • membranous (diffuse)
    • Proteinuria
      • isolated
        • with glomerular lesion
          • membranous (diffuse)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN001
Nephritis; nephrosis; renal sclerosis
Default principal diagnosis: inpatient No · outpatient No
CCSR GEN010
Proteinuria
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Glomerular Disease

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Code History & ChangesHistory

Replacement N06.20 replaces the following previously assigned code(s):

  • N06.2 - Isolated proteinuria w diffuse membranous glomerulonephritis
FY 2024AddedAdded to the ICD-10-CM code setEffective October 1, 2023.
FY 2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N06.20Overview

Is N06.20 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report isolated proteinuria with diffuse membranous glomerulonephritis, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N06.20 group to?

When isolated proteinuria with diffuse membranous glomerulonephritis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 698, 699, 700, with relative weights from 0.6899 to 1.6544 depending on complications. Higher weights mean higher Medicare reimbursement.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.