2021 ICD-10-CM Codes for Occls and stenosis of precerb art, not rslt in cereb infrc (I65)

Instructional Notations

Includes Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • embolism of precerebral artery
  • narrowing of precerebral artery
  • obstruction (complete) (partial) of precerebral artery
  • thrombosis of precerebral artery

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • insufficiency, NOS, of precerebral artery G45
  • insufficiency of precerebral arteries causing cerebral infarction I63.0 I63.2
    • ICD-10 Index

      • Diseases of the circulatory system (I00–I99)

        • Cerebrovascular diseases (I60-I69)

            • Occls and stenosis of precerb art, not rslt in cereb infrc (I65)
            • I65 - Occls and stenosis of precerb art, not rslt in cereb infrc NON-BILLABLE CODE
            • I65.0 - Occlusion and stenosis of vertebral artery NON-BILLABLE CODE
            • I65.01 - Occlusion and stenosis of right vertebral artery BILLABLE CODE
            • I65.02 - Occlusion and stenosis of left vertebral artery BILLABLE CODE
            • I65.03 - Occlusion and stenosis of bilateral vertebral arteries BILLABLE CODE
            • I65.09 - Occlusion and stenosis of unspecified vertebral artery BILLABLE CODE
            • I65.1 - Occlusion and stenosis of basilar artery BILLABLE CODE
            • I65.2 - Occlusion and stenosis of carotid artery NON-BILLABLE CODE
            • I65.21 - Occlusion and stenosis of right carotid artery BILLABLE CODE
            • I65.22 - Occlusion and stenosis of left carotid artery BILLABLE CODE
            • I65.23 - Occlusion and stenosis of bilateral carotid arteries BILLABLE CODE
            • I65.29 - Occlusion and stenosis of unspecified carotid artery BILLABLE CODE
            • I65.8 - Occlusion and stenosis of other precerebral arteries BILLABLE CODE
            • I65.9 - Occlusion and stenosis of unspecified precerebral artery BILLABLE CODE