I66.1 - Occlusion and stenosis of anterior cerebral artery
- Applicable to Occlusion and stenosis of anterior cerebral artery
- The 2025 edition of ICD10-CM I66.1 became effective on October 1, 2024.
- This is the American ICD10-CM version of I66.1 - other international versions of ICD10 I66.1 may differ.
- I66.1 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- I66.1 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- I66.1 - Occlusion and stenosis of anterior cerebral artery
- I66.1 - Occlusion and stenosis of anterior cerebral artery
- I66.11 - Occlusion and stenosis of right anterior cerebral artery
- I66.12 - Occlusion and stenosis of left anterior cerebral artery
- I66.13 - Occlusion and stenosis of bilateral anterior cerebral arteries
- I66.19 - Occlusion and stenosis of unspecified anterior cerebral artery
Non-Billable/Non-Specific Code
The following codes above I66.1 contain annotation back-references that may be applicable to I66.1:
- Chapter: I00-I99 - Diseases of the circulatory system
- Section: I60-I69 - Cerebrovascular diseases
- Category: I66 - Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
Browse other similar CM codes:
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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