I63.21
Header — not billableCerebral infarction due to unspecified occlusion or stenosis of vertebral arteries
The ICD-10 code for cerebral infarction due to unspecified occlusion or stenosis of vertebral arteries is I63.21.
I63.21 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under I63.21
- I63.211Cerebral infarction due to unspecified occlusion or stenosis of right vertebral artery
- I63.212Cerebral infarction due to unspecified occlusion or stenosis of left vertebral artery
- I63.213Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteries
- I63.219Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral artery
Related codes in this category
- I63.20Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteries
- I63.22Cerebral infarction due to unspecified occlusion or stenosis of basilar artery
- I63.23Cerebral infarction due to unspecified occlusion or stenosis of carotid arteriesnon-billable header
- I63.29Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries
- I63.21Cerebral infarction due to unspecified occlusion or stenosis of vertebral arteriesnon-billable header