I63.539
I63.539 — Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral artery
Billable / specific codeICD-10-CM
I63.539 is a billable, specific ICD-10-CM code for cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral artery. It is valid for submission on a claim.
Risk adjustment
I63.539 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
I63.539 is named in 12 Medicare coverage policies — 12 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)
- A56722Billing and Coding: Intraoperative Neurophysiological Testing
- A56747Billing and Coding: Magnetic Resonance Angiography (MRA)
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
Related codes at this level
Codes that share I63.53. If I63.539 is not quite right, the correct code is usually one of these.
- I63.531Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral artery
- I63.532Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral artery
- I63.533Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteries
Questions about I63.539
- Is I63.539 a billable ICD-10-CM code?
- Yes. I63.539 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I63.539 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).