G25.1
BillableDrug-induced tremor
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is G25.1 an HCC code?
No. G25.1 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
G25.1 is the ICD-10-CM diagnosis code for drug-induced tremor. A tremor (involuntary shaking) that develops as a side effect of taking certain medications. This is a movement disorder caused directly by drug exposure rather than an underlying neurological disease. G25.1 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering extrapyramidal and movement disorders (g20-g26).
G25.1 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.
Always identify and document the specific medication causing the tremor, as this should be coded separately using the appropriate drug code from the T36-T50 range.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G25.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Always identify and document the specific medication causing the tremor, as this should be coded separately using the appropriate drug code from the T36-T50 range
- •Ensure the clinical documentation clearly establishes the temporal relationship between medication initiation and tremor onset to support the drug-induced diagnosis