{"code":"I63.523","type":"code","title":"Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteries","codeAlso":[],"includes":["occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction"],"modern_v":"official26","codeFirst":[],"excludes1":["neonatal cerebral infarction (P91.82-)","traumatic intracranial hemorrhage (S06.-)"],"excludes2":["chronic, without residual deficits (sequelae) (Z86.73)","sequelae of cerebral infarction (I69.3-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":["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-)","code to identify presence of:","alcohol abuse and dependence (F10.-)","exposure to environmental tobacco smoke (Z77.22)","history of tobacco dependence (Z87.891)","hypertension (I10-I1A)","occupational exposure to environmental tobacco smoke (Z57.31)","tobacco dependence (F17.-)","tobacco use (Z72.0)"],"clinicalDefinition":"Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteries is a billable ICD-10-CM diagnosis code (I63.523). Includes: occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction. Excludes1 (not coded here): neonatal cerebral infarction (P91.82-); traumatic intracranial hemorrhage (S06.-). Excludes2 (not included here): chronic, without residual deficits (sequelae) (Z86.73); sequelae of cerebral infarction (I69.3-).","officialDefinition":"Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteries is a billable ICD-10-CM diagnosis code (I63.523). Includes: occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction. Excludes1 (not coded here): neonatal cerebral infarction (P91.82-); traumatic intracranial hemorrhage (S06.-). Excludes2 (not included here): chronic, without residual deficits (sequelae) (Z86.73); sequelae of cerebral infarction (I69.3-). Use additional code: 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-); code to identify presence of:; alcohol abuse and dependence (F10.-); exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); hypertension (I10-I1A); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":"","noteProvenance":{"neonatal cerebral infarction (P91.82-)":"I63","traumatic intracranial hemorrhage (S06.-)":"I63","chronic, without residual deficits (sequelae) (Z86.73)":"I63","sequelae of cerebral infarction (I69.3-)":"I63","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)":"I63","code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)":"I63","code to identify presence of:":"I63","alcohol abuse and dependence (F10.-)":"I63","exposure to environmental tobacco smoke (Z77.22)":"I63","history of tobacco dependence (Z87.891)":"I63","hypertension (I10-I1A)":"I63","occupational exposure to environmental tobacco smoke (Z57.31)":"I63","tobacco dependence (F17.-)":"I63","tobacco use (Z72.0)":"I63","occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction":"I63"},"hcc":{"mapped":true,"model":"CMS-HCC V28","paymentYear":"2026","categories":[{"hcc":"249","label":"Ischemic or Unspecified Stroke","family":"","suppresses":[]}],"otherModels":[{"model":"CMS-HCC V22","hcc":"100"}]}}