N00.0
BillableAcute nephritic syndrome with minor glomerular abnormality
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is N00.0 an HCC code?
No. N00.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
N00.0 is the ICD-10-CM diagnosis code for acute nephritic syndrome with minor glomerular abnormality. Sudden kidney inflammation with blood in urine caused by minor damage to the kidney's filtering structures. N00.0 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering glomerular diseases (n00-n08).
N00.0 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Confirm acute presentation with clinical findings such as hematuria, proteinuria, and elevated creatinine.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N00.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Confirm acute presentation with clinical findings such as hematuria, proteinuria, and elevated creatinine
- •Document the underlying etiology (post-infectious, IgA nephropathy, etc.) if known for complete coding