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ICD-10-CM I66.1: Occlusion and stenosis of anteri… · Codelle

ICD-10-CM/I66/I66.1

I66.1

ICD-10-CM

Occlusion and stenosis of anterior cerebral artery

Code Hierarchy

▲I66Occls and stenosis of cereb art, not rslt in cerebral infrc

I66.1(current)

Subcodes (4)

I66.11Occlusion and stenosis of right anterior cerebral artery

I66.12Occlusion and stenosis of left anterior cerebral artery

I66.13Occlusion and stenosis of bi anterior cerebral arteries

I66.19Occlusion and stenosis of unsp anterior cerebral artery

Same Category

I66Occls and stenosis of cereb art, not rslt in cerebral infrc I66.0Occlusion and stenosis of middle cerebral artery I66.01Occlusion and stenosis of right middle cerebral artery I66.02Occlusion and stenosis of left middle cerebral artery I66.03Occlusion and stenosis of bilateral middle cerebral arteries I66.09Occlusion and stenosis of unspecified middle cerebral artery I66.11Occlusion and stenosis of right anterior cerebral artery I66.12Occlusion and stenosis of left anterior cerebral artery I66.13Occlusion and stenosis of bi anterior cerebral arteries I66.19Occlusion and stenosis of unsp anterior cerebral artery

+5 more in this category

Code History

Added in FY2024
Active (FY2026)

Change History

FY2026 snapshotOcclusion and stenosis of anterior cerebral artery
FY2025 snapshotOcclusion and stenosis of anterior cerebral artery
FY2024 snapshotOcclusion and stenosis of anterior cerebral artery