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Free Medical Coding > ICD10 CM > 2025 ICD-10-CM Codes > 2025 ICD-10-CM Codes I00-I99 – Diseases of the circulatory system (I00-I99) > 2025 ICD-10-CM Codes I60-I69 – Cerebrovascular diseases (I60-I69) > 2025 ICD-10-CM Codes I65 – Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction (I65)

2025 ICD-10-CM Codes I65 – Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction (I65)

Type 1 Excludes

  • insufficiency, NOS, of precerebral artery (G45.-)
  • insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)

Includes

  • embolism of precerebral artery
  • narrowing of precerebral artery
  • obstruction (complete) (partial) of precerebral artery
  • thrombosis of precerebral artery
  • Codes Description
  • I65.0
    Occlusion and stenosis of vertebral artery
  • I65.1
    Occlusion and stenosis of basilar artery
  • I65.2
    Occlusion and stenosis of carotid artery
  • I65.8
    Occlusion and stenosis of other precerebral arteries
  • I65.9
    Occlusion and stenosis of unspecified precerebral artery