I63.533: Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteries
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.
Check I63.533 with the rest of the claim: free scrubberExcludes1 inherited from the categories above I63.533
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above I63.533
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with I63.533
Their own Excludes1 notes name this code, so the conflict is not listed above.
- P91.82Neonatal cerebral infarction
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. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I63.533 is named in 30 Medicare coverage policies: 30 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52868Billing and Coding: Transesophageal Echocardiography (TEE)
- A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
- A56605Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
- A56612Billing and Coding: CT of the Head
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under I63.53
- 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