I63.019 — Cerebral infarction due to thrombosis of unspecified vertebral artery
I63.019 is a billable, specific ICD-10-CM code for cerebral infarction due to thrombosis of unspecified vertebral artery. It is valid for submission on a claim.
Risk adjustment
I63.019 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 249 Ischemic or Unspecified Stroke0.239 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
I63.019 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56722Billing and Coding: Intraoperative Neurophysiological Testing
- A56747Billing and Coding: Magnetic Resonance Angiography (MRA)
- A57174Billing and Coding: MolDX: Pharmacogenomics Testing
- A57361Billing and Coding: Monitored Anesthesia Care
Code history
I63.019 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share I63.01. If I63.019 is not quite right, the correct code is usually one of these.
Questions about I63.019
- Is I63.019 a billable ICD-10-CM code?
- Yes. I63.019 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I63.019 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).