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Diagnosis Code

I66.22 OCCLUSION AND STENOSIS OF LEFT POSTERIOR CEREBRAL ARTERY


Code Information

Diagnosis Code: I66.22

Short Description: Occlusion and stenosis of left posterior cerebral artery

Long Description: Occlusion and stenosis of left posterior cerebral artery

The code I66.22 is VALID for claim submission

Code Classification:

  • Diseases of the circulatory system (I00–I99)
    • Cerebrovascular diseases (I60-I69)
      • Occls and stenosis of cereb art, not rslt in cerebral infrc (I66)
        • I66.22 Occlusion and stenosis of left posterior cerebral artery

Code Version: 2022 ICD-10-CM


Synonyms

  • Embolus of circle of Willis
  • Embolus of circle of Willis
  • Embolus of left posterior cerebral artery
  • Left posterior cerebral artery thrombosis
  • Occlusion of left posterior cerebral artery
  • Occlusion of left posterior cerebral artery by embolus
  • Occlusive thrombus of left posterior cerebral artery
  • Posterior cerebral artery embolism
  • Posterior cerebral artery embolism
  • Thrombosis of posterior cerebral artery
  • Thrombosis of posterior cerebral artery

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
I66.22 Right Arrow 434.00 Crbl thrmbs wo infrct
434.10 Crbl emblsm wo infrct
434.90 Crbl art oc NOS wo infrc

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
I66 Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
I66.0 Occlusion and stenosis of middle cerebral 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
I66.1 Occlusion and stenosis of anterior 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
I66.2 Occlusion and stenosis of posterior cerebral artery
I66.21 Occlusion and stenosis of right 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

This page was last updated on: 10/1/2023

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