N14.2
BillableNephropathy induced by unspecified drug, medicament or biological substance
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is N14.2 an HCC code?
No. N14.2 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
N14.2 is the ICD-10-CM diagnosis code for nephropathy induced by unspecified drug, medicament or biological substance. Kidney damage caused by an unknown drug, medication, or biological substance. The kidneys are harmed by a medication or treatment, but the specific substance causing the damage is not identified. N14.2 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering renal tubulo-interstitial diseases (n10-n16).
N14.2 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.
Use this code only when the specific causative drug or substance cannot be identified; if known, use a more specific N14 code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N14.2 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the specific causative drug or substance cannot be identified; if known, use a more specific N14 code
- •Always document the clinical presentation and timeline of kidney dysfunction in relation to medication exposure