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N06.2 ICD-10-CM Code: Isolated proteinuria with diffuse membranous glomerulonephritis

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Coding at a Glance

Tabular directives
2 Excludes1 · 1 code-also instruction

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for N06.2 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on N06.2 itself; “inherited from” names the category or block whose note applies here.

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated kidney failure (N17-N19).

Source: inherited from N00-N08

Coder workflow for N06.2

MedCoder structured workflow — derived from this code’s own official record

Before you code N06.2

  1. N06.2 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewN06.20, N06.21, N06.22, N06.29

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. N06.2’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

    Guide: Combination codes →

  3. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with N06.2. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support one of the more specific codes beneath N06.2?
    Yes → Select that code and continue the checks below on its own page.
    No → N06.2 cannot be reported as written; query for the specificity its subcategory needs.

    ReviewN06.20, N06.21, N06.22, N06.29

  2. Does the documentation support a condition named in N06.2’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewR80.0, I12

Consider N06.2. Then review the Code Also note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
The associated condition or complication
Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).

Official instructions as workflow

  • Excludes1 — check before selecting N06.2(2 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with N06.2: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareR80.0, I12

    See the official tabular notes · Guidelines I.A.12.a

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition N06.2 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewR80.0, I12

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is N06.2 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Isolated proteinuria with diffuse membranous glomerulonephritis is a non-billable ICD-10-CM category code (N06.2). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name N06.2 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: R80.0 — Isolated proteinuria (via N06.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Clinical classification (AHRQ CCSR):GEN010 — Proteinuria (default); GEN001 — Nephritis; nephrosis; renal sclerosis.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Proteinuria, Nephritis; nephrosis; renal sclerosis).

N05.3 — Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritis, N05.4 — Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis, N05.5 — Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritis, N05.6 — Unspecified nephritic syndrome with dense deposit disease, N05.7 — Unspecified nephritic syndrome with diffuse crescentic glomerulonephritis, N05.8 — Unspecified nephritic syndrome with other morphologic changes, N05.9 — Unspecified nephritic syndrome with unspecified morphologic changes, N05.A — Unspecified nephritic syndrome with C3 glomerulonephritis, N06.0 — Isolated proteinuria with minor glomerular abnormality, N06.1 — Isolated proteinuria with focal and segmental glomerular lesions, N06.20 — Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified, N06.21 — Primary membranous nephropathy with isolated proteinuria, N06.22 — Secondary membranous nephropathy with isolated proteinuria, N06.29 — Other isolated proteinuria with diffuse membranous glomerulonephritis, N06.3 — Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis, N06.4 — Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritis, N06.5 — Isolated proteinuria with diffuse mesangiocapillary glomerulonephritis, N06.6 — Isolated proteinuria with dense deposit disease, N06.7 — Isolated proteinuria with diffuse crescentic glomerulonephritis, N06.8 — Isolated proteinuria with other morphologic lesion, +130 more

Contextual Map

Every relationship of N06.2 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run N06.2 with this related code in Claim Check

Hierarchy

Referenced by Excludes1 notes

  • R80.0 — Isolated proteinuria[Excludes1](via N06.-): “isolated proteinuria with specific morphological lesion (N06.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

Nearest codes (15)

Change history (2)

Common coding questions

Can N06.2 be billed directly?

No. N06.2 (Isolated proteinuria with diffuse membranous glomerulonephritis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "N06.2 — Isolated proteinuria with diffuse membranous glomerulonephritis." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/n06.2-isolated-proteinuria-with-diffuse-membranous-glomerulonephritis

Change history

  • FY2024 — October 1, 2023
    Became a non-billable header
    FY2024 changes
  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Isolated proteinuria with diffuse membranous glomerulonephritis

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N06.2 in its code family, with their registry titles.

View all codes in the N06 family