Specific code 2014 ICD-9-CM Diagnosis Code 434.91
Cerebral artery occlusion, unspecified with cerebral infarction
  • Billable Code
  • Short description: Crbl art ocl NOS w infrc.
  • ICD-9-CM 434.91 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 434.91 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Acute ischemic stroke
  • Acute ischemic stroke with coma
  • Acute lacunar infarction
  • Acute stroke, nonatherosclerotic
  • Anterior cerebral circulation infarction
  • Basal ganglion infarct
  • Basal ganglion stroke
  • Brain stem infarction
  • Brain stem stroke
  • Cerebellar infarct
  • Cerebellar infarction
  • Cerebellar stroke
  • Cerebellar stroke syndrome
  • Cerebral infarct due to thrombosis of precerebral arteries
  • Cerebral infarction
  • Cerebral infarction due to cerebral venous thrombosis, non-pyogenic
  • Cerebral vascular accident (stroke) <8 wks
  • Cerebrovascular accident
  • Cerebrovascular accident, less than 8 weeks (disorder)
  • CVA - cerebrovascular accident due to cerebral artery occlusion
  • Dysarthria-clumsy hand syndrome
  • Hemorrhagic cerebral infarction
  • Infarction of basal ganglia
  • Infarction of brain stem
  • Infarction of medulla oblongata
  • Infarction of posterior cerebral circulation
  • Ischemic stroke
  • Ischemic stroke w coma
  • Ischemic stroke with coma (disorder)
  • Ischemic stroke without coma (disorder)
  • Ischemic stroke wo coma
  • Lacunar infarction
  • Lacunar stroke
  • Left sided cerebral infarction
  • Medulla oblongata stroke
  • Millard-Gubler syndrome
  • Multi-infarct state
  • Nonatherosclerotic cerebrovascular accident (disorder)
  • Nonatherosclerotic stroke
  • Occipital cerebral infarction
  • Occlusion of cerebral artery with stroke (disorder)
  • Occlusion of cerebral artery, w stroke
  • Occlusion of cerebral artery, with cerebral infarction
  • Paralytic stroke
  • Partial anterior cerebral circulation infarction
  • Posterior cerebral circulation hemorrhagic infarction
  • Posterior cerebral circulation infarction
  • Posterior cerebral circulation stroke
  • Pure motor lacunar infarction
  • Pure sensorimotor lacunar infarction
  • Pure sensory lacunar infarction
  • R.I.N.D. syndrome
  • Reversible ischemic neurologic deficit (R.I.N.D.) syndrome (disorder)
  • Reversible ischemic neurologic deficit syndrome
  • Right sided cerebral infarction
  • Stroke
  • Stroke <8 wks
  • Thalamic infarct
  • Thalamic infarction (disorder)
  • Thalamic stroke
  • Top of basilar syndrome
  • Total anterior cerebral circulation infarction
Convert to ICD-10-CM: 434.91 converts approximately to:
  • 2014 ICD-10-CM I63.50 Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral artery
ICD-9-CM Volume 2 Index entries containing back-references to 434.91:
  • Accident, accidental - see also condition
    • cerebral (see also Disease, cerebrovascular, acute) 434.91
    • cerebrovascular (current) (CVA) (see also Disease, cerebrovascular, acute) 434.91
      • aborted 434.91
      • embolic 434.11
      • healed or old V12.54
      • hemorrhagic - see Hemorrhage, brain
      • impending 435.9
      • ischemic 434.91
      • late effect - see Late effect(s) (of) cerebrovascular disease
      • postoperative 997.02
      • thrombotic 434.01
  • Deficit
    • neurologic NEC 781.99
      • due to
        • cerebrovascular lesion (see also Disease, cerebrovascular, acute) 436
          • late effect - see Late effect(s) (of) cerebrovascular disease
        • transient ischemic attack 435.9
      • ischemic
        • reversible (RIND) 434.91
          • history of (personal) V12.54
          • prolonged (PRIND) 434.91
  • Infarct, infarction
    • brain (stem) 434.91
      • embolic (see also Embolism, brain) 434.11
      • healed or old without residuals V12.54
      • iatrogenic 997.02
      • lacunar 434.91
      • late effect - see Late effect(s) (of) cerebrovascular disease
      • postoperative 997.02
      • puerperal, postpartum, childbirth 674.0
      • thrombotic (see also Thrombosis, brain) 434.01
    • cerebellar (see also Infarct, brain) 434.91
      • embolic (see also Embolism, brain) 434.11
    • cerebral (see also Infarct, brain) 434.91
      • aborted 434.91
      • embolic (see also Embolism, brain) 434.11
      • thrombotic (see also Infarct, brain) 434.01
    • cortical 434.91
    • lacunar 434.91
  • PRIND (prolonged reversible ischemic neurologic deficit) 434.91
  • RIND (reversible ischemic neurological deficit) 434.91
  • Stroke 434.91
    • apoplectic (see also Disease, cerebrovascular, acute) 436
    • brain - see Infarct, brain
    • epileptic - see Epilepsy
    • heart - see Disease, heart
    • hemorrhagic - see Hemorrhage, brain
    • in evolution 434.91
    • ischemic 434.91
    • late effect - see Late effect(s)) (of) cerebrovascular disease
    • paralytic - see Infarct, brain
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 434.91 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.