ICD-10 CM Code I66
I66
Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
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I66.0 Occlusion and stenosis of middle cerebral artery
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I66.1 Occlusion and stenosis of anterior cerebral artery
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I66.2 Occlusion and stenosis of posterior cerebral artery
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I66.3 Occlusion and stenosis of cerebellar arteries
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I66.8 Occlusion and stenosis of other cerebral arteries
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I66.9 Occlusion and stenosis of unspecified cerebral artery
Includes
- embolism of cerebral artery
- narrowing of cerebral artery
- obstruction (complete) (partial) of cerebral artery
- thrombosis of cerebral artery
Excludes Type 1
- Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5)
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