What is ICD-10 code N02.4?

N02.4 is the ICD-10-CM diagnosis code for Recurrent and persistent hematuria with diffuse endocapillary proliferative glomerulonephritis. Persistent blood in the urine caused by widespread inflammation and cell growth in the inner lining of the kidney's blood vessels. N02.4 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. N02.4 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. N02.4 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. N02.4 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Which HCC does N02.4 map to under V28?

N02.4 has no payable CMS-HCC V28 mapping in the final FY2026 CMS file.

What RAF reference is published for N02.4?

N02.4 has no V28 reference coefficient because the final FY2026 source verifies no payable V28 mapping.

What is the V28 vs V24 difference for N02.4?

N02.4 has verified no payable V28 mapping in the final FY2026 source. Select a historical effective period before making any V24 comparison.

What documentation supports N02.4?

Ensure the endocapillary proliferation is clearly documented in the renal biopsy findings. Differentiate from extracapillary proliferation, which would indicate a different glomerular disease pattern. N02.4 is not a CMS-HCC V28 payment code in the verified current source, so MEAT is not the payment hook. Documentation still has to support the diagnosis if you report it.

2026 ICD-10-CM N02.4: Recurrent and persistent hematuria

N02.4 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software

ICD-10-CM Code View

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Code lookupN02.4

Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Glomerular diseases (N00-N08)

N02.4

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Recurrent and persistent hematuria with diffuse endocapillary proliferative glomerulonephritis

Persistent blood in the urine caused by widespread inflammation and cell growth in the inner lining of the kidney's blood vessels.

Overview Risk Models Code Book Documentation Audit Notes Edition comparison

CMS-HCC V28

N/A

—

Not risk-adjusted for this model/period.

Not mapped

CMS-HCC V24

Historical

Not used for standard CY2026 Medicare Advantage payment. Select a historical period to review V24.

Not used for CY2026 payment

ACA/HHS

N/A

—

Not risk-adjusted for this model/period.

Not mapped

ESRD/PACE

N/A

—

Not risk-adjusted for this model/period.

Not mapped

RXHCC

N/A

—

Not risk-adjusted for this model/period.

Not mapped

Code Book Path

Official

N02Recurrent and persistent hematuria N02.4Recurrent and persistent hematuria with diffuse endocapillary proliferative glomerulonephritis

Inclusion Terms

Official

No inclusion terms are included in this display for N02.4. Check the code and parent instructions in the Code Book.

Excludes 2

Official

certain conditions originating in the perinatal period (P04-P96)Inherited from N00-N99
certain infectious and parasitic diseases (A00-B99)Inherited from N00-N99
complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from N00-N99
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Inherited from N00-N99
endocrine, nutritional and metabolic diseases (E00-E88)Inherited from N00-N99
injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from N00-N99
neoplasms (C00-D49)Inherited from N00-N99
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from N00-N99

Related Codes

Official

N02.0Recurrent and persistent hematuria with minor glomerular abnormality N02.1Recurrent and persistent hematuria with focal and segmental glomerular lesions N02.2Recurrent and persistent hematuria with diffuse membranous glomerulonephritis N02.3Recurrent and persistent hematuria with diffuse mesangial proliferative glomerulonephritis N02.5Recurrent and persistent hematuria with diffuse mesangiocapillary glomerulonephritis

Includes

Official

No Includes notes are included in this display for N02.4. Check the code and parent instructions in the Code Book.

Excludes 1

Official

hypertensive chronic kidney disease (I12.-)Inherited from N00-N08, N02
acute cystitis with hematuria (N30.01)Inherited from N00-N08, N02
hematuria NOS (R31.9)Inherited from N00-N08, N02
hematuria not associated with specified morphologic lesions (R31.-)Inherited from N00-N08, N02

Code First

Official

No Code First sequencing instructions are included in this display for N02.4. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for N02.4. Check the code and parent instructions in the Code Book.

Code Also

Official

any associated kidney failure (N17-N19).Inherited from N00-N08

Buddy Documentation Tip

HCC Buddy guidance

Ensure the endocapillary proliferation is clearly documented in the renal biopsy findings.

Differentiate from extracapillary proliferation, which would indicate a different glomerular disease pattern.

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is N02.4 an HCC code?

No. N02.4 is a billable ICD-10-CM code with no mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models.

Code: N02.4
Description: Recurrent and persistent hematuria with diffuse endocapillary proliferative glomerulonephritis
HCC (V28): No CMS-HCC V28 mapping
RAF reference coefficient: —
Billable: Yes
Payment year: 2026

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

N02.4 is the ICD-10-CM diagnosis code for recurrent and persistent hematuria with diffuse endocapillary proliferative glomerulonephritis. Persistent blood in the urine caused by widespread inflammation and cell growth in the inner lining of the kidney's blood vessels. N02.4 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering glomerular diseases (n00-n08).

N02.4 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.

Ensure the endocapillary proliferation is clearly documented in the renal biopsy findings.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for N02.4 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Ensure the endocapillary proliferation is clearly documented in the renal biopsy findings.
•Differentiate from extracapillary proliferation, which would indicate a different glomerular disease pattern.