I66.1
Header — not billableOcclusion and stenosis of anterior cerebral artery
The ICD-10 code for occlusion and stenosis of anterior cerebral artery is I66.1.
I66.1 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.
Related codes in this category
- I66.0Occlusion and stenosis of middle cerebral arterynon-billable header
- I66.2Occlusion and stenosis of posterior cerebral arterynon-billable header
- I66.3Occlusion and stenosis of cerebellar arteries
- I66.8Occlusion and stenosis of other cerebral arteries
- I66.9Occlusion and stenosis of unspecified cerebral artery
- I66.1Occlusion and stenosis of anterior cerebral arterynon-billable header