I63.30 — Cerebral infarction due to thrombosis of unspecified cerebral artery
I63.30 is a billable, specific ICD-10-CM code for cerebral infarction due to thrombosis of unspecified cerebral artery. It is valid for submission on a claim.
Risk adjustment
I63.30 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
I63.30 is named in 17 Medicare coverage policies — 17 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52868Billing and Coding: Transesophageal Echocardiography (TEE)
- A56612Billing and Coding: CT of the Head
- A56631Billing and Coding: Thoracic Aortography and Carotid, Vertebral, and Subclavian Angiography
- A56675Billing and Coding: Homocysteine Level, Serum
How I63.30 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I63.30.
- Occlusion, occluded›artery›cerebral›with infarction›due to›thrombosis
Related codes at this level
Codes that share I63.3. If I63.30 is not quite right, the correct code is usually one of these.
- I63.31Cerebral infarction due to thrombosis of middle cerebral artery
- I63.32Cerebral infarction due to thrombosis of anterior cerebral artery
- I63.33Cerebral infarction due to thrombosis of posterior cerebral artery
- I63.34Cerebral infarction due to thrombosis of cerebellar artery
- I63.39Cerebral infarction due to thrombosis of other cerebral artery
Questions about I63.30
- Is I63.30 a billable ICD-10-CM code?
- Yes. I63.30 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I63.30 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).