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ICD-10-CM · FY 2026 APRIL UPDATE

I63.5

Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
I63.50Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral arteryBillable
I63.51Cerebral infarction due to unspecified occlusion or stenosis of middle cerebral arteryCategory
I63.511Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral arteryBillable
I63.512Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral arteryBillable
I63.513Cerebral infarction due to unspecified occlusion or stenosis of bilateral middle cerebral arteriesBillable
I63.519Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral arteryBillable
I63.52Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral arteryCategory
I63.521Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral arteryBillable
I63.522Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral arteryBillable
I63.523Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteriesBillable
I63.529Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral arteryBillable
I63.53Cerebral infarction due to unspecified occlusion or stenosis of posterior cerebral arteryCategory
I63.531Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral arteryBillable
I63.532Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral arteryBillable
I63.533Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteriesBillable
I63.539Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral arteryBillable
I63.54Cerebral infarction due to unspecified occlusion or stenosis of cerebellar arteryCategory
I63.541Cerebral infarction due to unspecified occlusion or stenosis of right cerebellar arteryBillable
I63.542Cerebral infarction due to unspecified occlusion or stenosis of left cerebellar arteryBillable
I63.543Cerebral infarction due to unspecified occlusion or stenosis of bilateral cerebellar arteriesBillable
I63.549Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebellar arteryBillable
I63.59Cerebral infarction due to unspecified occlusion or stenosis of other cerebral arteryBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.