ICD-10-CM › I00-I99 › I60-I69 › I codes › I65

I65

Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 5 more specific codes instead:

  • I65.0 Occlusion and stenosis of vertebral artery (also a header)
  • I65.1 Occlusion and stenosis of basilar artery
  • I65.2 Occlusion and stenosis of carotid artery (also a header)
  • I65.8 Occlusion and stenosis of other precerebral arteries
  • I65.9 Occlusion and stenosis of unspecified precerebral artery

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Excludes1 - never coded here

  • 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

Inherited from the I60-I69 section Cerebrovascular diseases (I60-I69)

Excludes1 - never coded here

  • traumatic intracranial hemorrhage (S06.-)

Use additional code

  • code to identify presence of:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • hypertension (I10-I1A)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)