2026 ICD-10-CM Diagnosis Code N08Glomerular disorders in diseases classified elsewhere
ICD-10-CM Codes›N00–N99›N00-N08›N08
- Billable — Valid for Submission
- Not Chronic
N08 is a billable ICD-10-CM diagnosis code for glomerular disorders in diseases classified elsewhere. 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. The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nephritis; nephrosis; renal sclerosis.
N08 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the ESRD (V21) category 141 for payment year 2026.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for N08.
Medicare Risk Adjustment (HCC)Billing
N08 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.
Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cryoglobulinemic glomerulonephritis
- Disorder of glomerulus caused by Plasmodium malariae
- Glomerular disease due to action myoclonus renal failure syndrome
- Glomerular disease due to Alport syndrome
- Glomerular disease due to coagulation disorder
- Glomerular disease due to complement system disorder
- Glomerular disease due to diffuse mesangial sclerosis
- Glomerular disease due to double heterozygous sickling disorder
- Glomerular disease due to Fabry disease
- Glomerular disease due to familial disease
- Glomerular disease due to familial hematuria
- Glomerular disease due to Finnish type congenital nephrotic syndrome
- Glomerular disease due to hematological disease
- Glomerular disease due to infectious disease
- Glomerular disease due to mitochondrial cytopathy
- Glomerular disease due to neoplastic disease
- Glomerular disease due to parasitic disease
- Glomerular disease due to thin basement membrane nephropathy
- Glomerular disorder due to amyloidosis
- Glomerular disorder due to hemolytic uremic syndrome
- Glomerular disorder due to infection caused by Schistosoma
- Glomerular disorder due to neuropathic heredofamilial amyloidosis
- Glomerular disorder due to non-neuropathic heredofamilial amyloidosis
- Glomerular disorder due to organ-limited amyloidosis
- Glomerular disorder due to secondary systemic amyloidosis
- Glomerular disorder due to sickle cell trait
- Glomerular disorder due to Strongyloides infection
- Glomerular disorder due to thrombotic thrombocytopenic purpura
- Glomerular disorders in blood diseases and disorders involving the immune mechanism
- Glomerulonephritis co-occurrent and due to antineutrophil cytoplasmic antibody positive vasculitis
- Glomerulonephritis co-occurrent and due to scleroderma
- Glomerulonephritis due to Henoch-Schönlein purpura
- Glomerulonephritis due to hepatitis C
- Henoch-Schönlein nephritis
- Inborn error of lipoprotein metabolism
- Juxtaglomerular hyperplasia co-occurrent with secondary hyperaldosteronism
- Light chain nephropathy
- Light chain nephropathy due to multiple myeloma
- Lipoprotein glomerulopathy
- Macroglobulinemic nephropathy
- Malignancy-associated glomerulonephritis
- Malignancy-associated membranous nephropathy
- Nephritis caused by drug
- Nodular glomerulosclerosis due to heavy chain deposition disease
- Renal involvement in malignant disease
- Renal involvement in scleroderma
- Secondary glomerular disease
- Secondary hyperaldosteronism
- Sickle cell nephropathy
- Urinary schistosomiasis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Glomerulonephritis
- Nephritis
- Nephropathy
Code First
- underlying disease, such as:
- amyloidosis E85
- congenital syphilis A50.5
- cryoglobulinemia D89.1
- disseminated intravascular coagulation D65
- gout M1A M10
- microscopic polyangiitis M31.7
- multiple myeloma C90.0
- sepsis A40.0 A41.9
- sickle-cell disease D57.0 D57.8
Type 1 Excludes
- glomerulonephritis, nephritis and nephropathy (in):
- antiglomerular basement membrane disease M31.0
- diabetes E08 E13
- gonococcal A54.21
- Goodpasture's syndrome M31.0
- hemolytic-uremic syndrome D59.3
- lupus M32.14
- mumps B26.83
- syphilis A52.75
- systemic lupus erythematosus M32.14
- Wegener's granulomatosis M31.31
- pyelonephritis in diseases classified elsewhere N16
- renal tubulo-interstitial disorders classified elsewhere N16
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Sickle Cell Nephropathy
nephropathy secondary to sickle cell disease, characterized by the presence of sickled erythrocytes in the renal medullary vessels, renal ischemia and microinfarctions, renal papillary necrosis, and renal tubular abnormalities.Cryoglobulinemic Glomerulonephritis
glomerulonephritis in the context of cryoglobulinemia.Cryoglobulinemic Glomerulonephritis Secondary to Systemic Disease
cryoglobulinemia glomerulonephritis associated with chronic disease, often inflammatory conditions.Type I Cryoglobulinemic Glomerulonephritis
glomerulonephritis caused by cryoglobulins which are composed of monoclonal immunoglobulins igg, iga, or igm. it occurs in patients with lymphoproliferative disorders.
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
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Convert N08 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N08Overview
What is the ICD-10 code for glomerular disorders in diseases classified elsewhere?
The ICD-10-CM code for glomerular disorders in diseases classified elsewhere is N08. It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is N08 (Glomerular disorders in diseases classified elsewhere) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report glomerular disorders in diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does N08 group to?
On inpatient claims, glomerular disorders in diseases classified elsewhere maps to MS-DRG 698, 699, 700, with relative weights from 0.6899 to 1.6544 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N08 be a principal diagnosis?
No. This is a manifestation code: glomerular disorders in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
What is the ICD-9 equivalent of N08?
Under the General Equivalence Mappings, glomerular disorders in diseases classified elsewhere converts to ICD-9-CM 583.81 (nephritis NOS in oth dis). The mapping is approximate, so confirm the match fits the documentation.
Does N08 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage: N08 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the ESRD (V21) category 141 (Nephritis).
