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Occlusion or stenosis of precerebral or cerebral arteries without infarction

CCSR category CIR023 · 26 ICD-10-CM codes

Code Families in This Category

  • I66 Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction · 15
  • I65 Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction · 11

ICD-10-CM Codes in This Category (26)

  • I65.01 — Occlusion and stenosis of right vertebral artery
  • I65.02 — Occlusion and stenosis of left vertebral artery
  • I65.03 — Occlusion and stenosis of bilateral vertebral arteries
  • I65.09 — Occlusion and stenosis of unspecified vertebral artery
  • I65.1 — Occlusion and stenosis of basilar artery
  • I65.21 — Occlusion and stenosis of right carotid artery
  • I65.22 — Occlusion and stenosis of left carotid artery
  • I65.23 — Occlusion and stenosis of bilateral carotid arteries
  • I65.29 — Occlusion and stenosis of unspecified carotid artery
  • I65.8 — Occlusion and stenosis of other precerebral arteries
  • I65.9 — Occlusion and stenosis of unspecified precerebral artery
  • I66.01 — Occlusion and stenosis of right middle cerebral artery
  • I66.02 — Occlusion and stenosis of left middle cerebral artery
  • I66.03 — Occlusion and stenosis of bilateral middle cerebral arteries
  • I66.09 — Occlusion and stenosis of unspecified middle cerebral artery
  • I66.11 — Occlusion and stenosis of right anterior cerebral artery
  • I66.12 — Occlusion and stenosis of left anterior cerebral artery
  • I66.13 — Occlusion and stenosis of bilateral anterior cerebral arteries
  • I66.19 — Occlusion and stenosis of unspecified anterior cerebral artery
  • I66.21 — Occlusion and stenosis of right posterior cerebral artery
  • I66.22 — Occlusion and stenosis of left posterior cerebral artery
  • I66.23 — Occlusion and stenosis of bilateral posterior cerebral arteries
  • I66.29 — Occlusion and stenosis of unspecified posterior cerebral artery
  • I66.3 — Occlusion and stenosis of cerebellar arteries
  • I66.8 — Occlusion and stenosis of other cerebral arteries
  • I66.9 — Occlusion and stenosis of unspecified cerebral artery

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, Rockville, MD. All data sources.