ICD-10-CM · Chapter 9 · I00–I99
Stroke (Cerebral Infarction) ICD-10-CM Codes
ICD-10-CM codes for stroke and cerebral infarction, including occlusion-related codes and late effects of stroke.
167Total codes
131Billable
2026FY
Coding Guidance for Stroke (Cerebral Infarction)
Category I63 covers cerebral infarction caused by thrombosis, embolism, unspecified occlusion, or cerebral hemorrhage. I63.9 (cerebral infarction, unspecified) applies when the cause is not documented.
I65 and I66 report occlusion and stenosis of precerebral and cerebral arteries that have not resulted in cerebral infarction, such as asymptomatic carotid stenosis. Use I63 only when an infarction has occurred.
Late effects of stroke, including residual deficits such as aphasia or hemiplegia after healing of the infarct, are coded from category I69 with the original I63 code. A history of resolved cerebral infarction without deficits uses Z86.73 instead.
167 codes — FY2026 ICD-10-CMEffective April 1, 2026
I63Cerebral infarctionNon-BillableI63.0Cerebral infarction due to thrombosis of precerebral arteriesNon-BillableI63.00Cerebral infarction due to thrombosis of unspecified precerebral arteryBillableI63.01Cerebral infarction due to thrombosis of vertebral arteryNon-BillableI63.011Cerebral infarction due to thrombosis of right vertebral arteryBillableI63.012Cerebral infarction due to thrombosis of left vertebral arteryBillableI63.013Cerebral infarction due to thrombosis of bilateral vertebral arteriesBillableI63.019Cerebral infarction due to thrombosis of unspecified vertebral arteryBillableI63.02Cerebral infarction due to thrombosis of basilar arteryBillableI63.03Cerebral infarction due to thrombosis of carotid arteryNon-BillableI63.031Cerebral infarction due to thrombosis of right carotid arteryBillableI63.032Cerebral infarction due to thrombosis of left carotid arteryBillableI63.033Cerebral infarction due to thrombosis of bilateral carotid arteriesBillableI63.039Cerebral infarction due to thrombosis of unspecified carotid arteryBillableI63.09Cerebral infarction due to thrombosis of other precerebral arteryBillableI63.1Cerebral infarction due to embolism of precerebral arteriesNon-BillableI63.10Cerebral infarction due to embolism of unspecified precerebral arteryBillableI63.11Cerebral infarction due to embolism of vertebral arteryNon-BillableI63.111Cerebral infarction due to embolism of right vertebral arteryBillableI63.112Cerebral infarction due to embolism of left vertebral arteryBillableI63.113Cerebral infarction due to embolism of bilateral vertebral arteriesBillableI63.119Cerebral infarction due to embolism of unspecified vertebral arteryBillableI63.12Cerebral infarction due to embolism of basilar arteryBillableI63.13Cerebral infarction due to embolism of carotid arteryNon-BillableI63.131Cerebral infarction due to embolism of right carotid arteryBillableI63.132Cerebral infarction due to embolism of left carotid arteryBillableI63.133Cerebral infarction due to embolism of bilateral carotid arteriesBillableI63.139Cerebral infarction due to embolism of unspecified carotid arteryBillableI63.19Cerebral infarction due to embolism of other precerebral arteryBillableI63.2Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteriesNon-BillableI63.20Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteriesBillableI63.21Cerebral infarction due to unspecified occlusion or stenosis of vertebral arteriesNon-BillableI63.211Cerebral infarction due to unspecified occlusion or stenosis of right vertebral arteryBillableI63.212Cerebral infarction due to unspecified occlusion or stenosis of left vertebral arteryBillableI63.213Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteriesBillableI63.219Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral arteryBillableI63.22Cerebral infarction due to unspecified occlusion or stenosis of basilar arteryBillableI63.23Cerebral infarction due to unspecified occlusion or stenosis of carotid arteriesNon-BillableI63.231Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteriesBillableI63.232Cerebral infarction due to unspecified occlusion or stenosis of left carotid arteriesBillableI63.233Cerebral infarction due to unspecified occlusion or stenosis of bilateral carotid arteriesBillableI63.239Cerebral infarction due to unspecified occlusion or stenosis of unspecified carotid arteryBillableI63.29Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteriesBillableI63.3Cerebral infarction due to thrombosis of cerebral arteriesNon-BillableI63.30Cerebral infarction due to thrombosis of unspecified cerebral arteryBillableI63.31Cerebral infarction due to thrombosis of middle cerebral arteryNon-BillableI63.311Cerebral infarction due to thrombosis of right middle cerebral arteryBillableI63.312Cerebral infarction due to thrombosis of left middle cerebral arteryBillableI63.313Cerebral infarction due to thrombosis of bilateral middle cerebral arteriesBillableI63.319Cerebral infarction due to thrombosis of unspecified middle cerebral arteryBillableI63.32Cerebral infarction due to thrombosis of anterior cerebral arteryNon-BillableI63.321Cerebral infarction due to thrombosis of right anterior cerebral arteryBillableI63.322Cerebral infarction due to thrombosis of left anterior cerebral arteryBillableI63.323Cerebral infarction due to thrombosis of bilateral anterior cerebral arteriesBillableI63.329Cerebral infarction due to thrombosis of unspecified anterior cerebral arteryBillableI63.33Cerebral infarction due to thrombosis of posterior cerebral arteryNon-BillableI63.331Cerebral infarction due to thrombosis of right posterior cerebral arteryBillableI63.332Cerebral infarction due to thrombosis of left posterior cerebral arteryBillableI63.333Cerebral infarction due to thrombosis of bilateral posterior cerebral arteriesBillableI63.339Cerebral infarction due to thrombosis of unspecified posterior cerebral arteryBillableI63.34Cerebral infarction due to thrombosis of cerebellar arteryNon-BillableI63.341Cerebral infarction due to thrombosis of right cerebellar arteryBillableI63.342Cerebral infarction due to thrombosis of left cerebellar arteryBillableI63.343Cerebral infarction due to thrombosis of bilateral cerebellar arteriesBillableI63.349Cerebral infarction due to thrombosis of unspecified cerebellar arteryBillableI63.39Cerebral infarction due to thrombosis of other cerebral arteryBillableI63.4Cerebral infarction due to embolism of cerebral arteriesNon-BillableI63.40Cerebral infarction due to embolism of unspecified cerebral arteryBillableI63.41Cerebral infarction due to embolism of middle cerebral arteryNon-BillableI63.411Cerebral infarction due to embolism of right middle cerebral arteryBillableI63.412Cerebral infarction due to embolism of left middle cerebral arteryBillableI63.413Cerebral infarction due to embolism of bilateral middle cerebral arteriesBillableI63.419Cerebral infarction due to embolism of unspecified middle cerebral arteryBillableI63.42Cerebral infarction due to embolism of anterior cerebral arteryNon-BillableI63.421Cerebral infarction due to embolism of right anterior cerebral arteryBillableI63.422Cerebral infarction due to embolism of left anterior cerebral arteryBillableI63.423Cerebral infarction due to embolism of bilateral anterior cerebral arteriesBillableI63.429Cerebral infarction due to embolism of unspecified anterior cerebral arteryBillableI63.43Cerebral infarction due to embolism of posterior cerebral arteryNon-BillableI63.431Cerebral infarction due to embolism of right posterior cerebral arteryBillableI63.432Cerebral infarction due to embolism of left posterior cerebral arteryBillableI63.433Cerebral infarction due to embolism of bilateral posterior cerebral arteriesBillableI63.439Cerebral infarction due to embolism of unspecified posterior cerebral arteryBillableI63.44Cerebral infarction due to embolism of cerebellar arteryNon-BillableI63.441Cerebral infarction due to embolism of right cerebellar arteryBillableI63.442Cerebral infarction due to embolism of left cerebellar arteryBillableI63.443Cerebral infarction due to embolism of bilateral cerebellar arteriesBillableI63.449Cerebral infarction due to embolism of unspecified cerebellar arteryBillableI63.49Cerebral infarction due to embolism of other cerebral arteryBillableI63.5Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteriesNon-BillableI63.50Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral arteryBillableI63.51Cerebral infarction due to unspecified occlusion or stenosis of middle cerebral arteryNon-BillableI63.511Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral arteryBillableI63.512Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral arteryBillableI63.513Cerebral infarction due to unspecified occlusion or stenosis of bilateral middle cerebral arteriesBillableI63.519Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral arteryBillableI63.52Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral arteryNon-BillableI63.521Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral arteryBillableI63.522Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral arteryBillableI63.523Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteriesBillableI63.529Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral arteryBillableI63.53Cerebral infarction due to unspecified occlusion or stenosis of posterior cerebral arteryNon-BillableI63.531Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral arteryBillableI63.532Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral arteryBillableI63.533Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteriesBillableI63.539Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral arteryBillableI63.54Cerebral infarction due to unspecified occlusion or stenosis of cerebellar arteryNon-BillableI63.541Cerebral infarction due to unspecified occlusion or stenosis of right cerebellar arteryBillableI63.542Cerebral infarction due to unspecified occlusion or stenosis of left cerebellar arteryBillableI63.543Cerebral infarction due to unspecified occlusion or stenosis of bilateral cerebellar arteriesBillableI63.549Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebellar arteryBillableI63.59Cerebral infarction due to unspecified occlusion or stenosis of other cerebral arteryBillableI63.6Cerebral infarction due to cerebral venous thrombosis, nonpyogenicBillableI63.8Other cerebral infarctionNon-BillableI63.81Other cerebral infarction due to occlusion or stenosis of small arteryBillableI63.89Other cerebral infarctionBillableI63.9Cerebral infarction, unspecifiedBillableI65Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarctionNon-BillableI66Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarctionNon-BillableI69.3Sequelae of cerebral infarctionNon-BillableI69.30Unspecified sequelae of cerebral infarctionBillableI69.31Cognitive deficits following cerebral infarctionNon-BillableI69.310Attention and concentration deficit following cerebral infarctionBillableI69.311Memory deficit following cerebral infarctionBillableI69.312Visuospatial deficit and spatial neglect following cerebral infarctionBillableI69.313Psychomotor deficit following cerebral infarctionBillableI69.314Frontal lobe and executive function deficit following cerebral infarctionBillableI69.315Cognitive social or emotional deficit following cerebral infarctionBillableI69.318Other symptoms and signs involving cognitive functions following cerebral infarctionBillableI69.319Unspecified symptoms and signs involving cognitive functions following cerebral infarctionBillableI69.32Speech and language deficits following cerebral infarctionNon-BillableI69.320Aphasia following cerebral infarctionBillableI69.321Dysphasia following cerebral infarctionBillableI69.322Dysarthria following cerebral infarctionBillableI69.323Fluency disorder following cerebral infarctionBillableI69.328Other speech and language deficits following cerebral infarctionBillableI69.33Monoplegia of upper limb following cerebral infarctionNon-BillableI69.331Monoplegia of upper limb following cerebral infarction affecting right dominant sideBillableI69.332Monoplegia of upper limb following cerebral infarction affecting left dominant sideBillableI69.333Monoplegia of upper limb following cerebral infarction affecting right non-dominant sideBillableI69.334Monoplegia of upper limb following cerebral infarction affecting left non-dominant sideBillableI69.339Monoplegia of upper limb following cerebral infarction affecting unspecified sideBillableI69.34Monoplegia of lower limb following cerebral infarctionNon-BillableI69.341Monoplegia of lower limb following cerebral infarction affecting right dominant sideBillableI69.342Monoplegia of lower limb following cerebral infarction affecting left dominant sideBillableI69.343Monoplegia of lower limb following cerebral infarction affecting right non-dominant sideBillableI69.344Monoplegia of lower limb following cerebral infarction affecting left non-dominant sideBillableI69.349Monoplegia of lower limb following cerebral infarction affecting unspecified sideBillableI69.35Hemiplegia and hemiparesis following cerebral infarctionNon-BillableI69.351Hemiplegia and hemiparesis following cerebral infarction affecting right dominant sideBillableI69.352Hemiplegia and hemiparesis following cerebral infarction affecting left dominant sideBillableI69.353Hemiplegia and hemiparesis following cerebral infarction affecting right non-dominant sideBillableI69.354Hemiplegia and hemiparesis following cerebral infarction affecting left non-dominant sideBillableI69.359Hemiplegia and hemiparesis following cerebral infarction affecting unspecified sideBillableI69.36Other paralytic syndrome following cerebral infarctionNon-BillableI69.361Other paralytic syndrome following cerebral infarction affecting right dominant sideBillableI69.362Other paralytic syndrome following cerebral infarction affecting left dominant sideBillableI69.363Other paralytic syndrome following cerebral infarction affecting right non-dominant sideBillableI69.364Other paralytic syndrome following cerebral infarction affecting left non-dominant sideBillableI69.365Other paralytic syndrome following cerebral infarction, bilateralBillableI69.369Other paralytic syndrome following cerebral infarction affecting unspecified sideBillableI69.39Other sequelae of cerebral infarctionNon-BillableI69.390Apraxia following cerebral infarctionBillableI69.391Dysphagia following cerebral infarctionBillableI69.392Facial weakness following cerebral infarctionBillableI69.393Ataxia following cerebral infarctionBillableI69.398Other sequelae of cerebral infarctionBillableMore Condition Guides
Diabetes Mellitus CodesHypertension CodesPneumonia CodesCOPD CodesAsthma CodesChronic Kidney Disease CodesHeart Failure CodesAtrial Fibrillation CodesSepsis CodesGERD CodesUrinary Tract Infection CodesAnemia CodesHypothyroidism CodesOsteoarthritis CodesDepression CodesMigraine CodesCoronary Artery Disease CodesObesity Codes
About these codes
These ICD-10-CM codes are sourced from the official FY2026 tabular list published by the Centers for Medicare & Medicaid Services (CMS), effective April 1, 2026. Click any code for full clinical details including instructional notes, excludes guidance, and DRG mappings.
Browse all of Chapter 9: Diseases of the Circulatory System →