I63
ICD-10Non-billable categoryCerebral infarction
Official ICD-10-CM descriptor (FY2026)
Cerebral infarction
I63 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- neonatal cerebral infarction (P91.82-)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- chronic, without residual deficits (sequelae) (Z86.73)
- sequelae of cerebral infarction (I69.3-)
Use additional code
Report an additional code to identify the associated condition.
- code, if applicable, to identify status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
- code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)
More specific codes under I63
- I63.0Cerebral infarction due to thrombosis of precerb arteriescategory
- I63.1Cerebral infarction due to embolism of precerebral arteriescategory
- I63.2Cerebral infrc due to unsp occls or stenosis of precerb artcategory
- I63.3Cerebral infarction due to thrombosis of cerebral arteriescategory
- I63.4Cerebral infarction due to embolism of cerebral arteriescategory
- I63.5Cerebral infrc due to unsp occls or stenosis of cerebral artcategory
- I63.6Cerebral infrc due to cerebral venous thombos, nonpyogenic
- I63.8Other cerebral infarctioncategory
- I63.9Cerebral infarction, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.