I63.533
I63.533 — Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteries
Billable / specific codeICD-10-CMbilateral
I63.533 is a billable, specific ICD-10-CM code for cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteries. It is valid for submission on a claim.
Risk adjustment
I63.533 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
I63.533 is named in 31 Medicare coverage policies — 31 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)
- A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
- A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
- A56605Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
Related codes at this level
Codes that share I63.53. If I63.533 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
- I63.539Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral artery
Questions about I63.533
- Is I63.533 a billable ICD-10-CM code?
- Yes. I63.533 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I63.533 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).