ICD-10-CM Code I63.8

Other cerebral infarction

Version 2020 Replaced Code Non-Billable Code

Not Valid for Submission

I63.8 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of other cerebral infarction. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:I63.8
Short Description:Other cerebral infarction
Long Description:Other cerebral infarction

Consider the following ICD-10 codes with a higher level of specificity:

  • I63.81 - Other cerebral infarction due to occlusion or stenosis of small artery
  • I63.89 - Other cerebral infarction

Replaced Code

This code was replaced in the 2020 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2019. This code was replaced for the FY 2020 (October 1, 2019 - September 30, 2020).

  • I63.81 - Other cereb infrc due to occls or stenosis of small artery
  • I63.89 - Other cerebral infarction

Clinical Information

  • CEREBRAL INFARCTION-. the formation of an area of necrosis in the cerebrum caused by an insufficiency of arterial or venous blood flow. infarcts of the cerebrum are generally classified by hemisphere i.e. left vs. right lobe e.g. frontal lobe infarction arterial distribution e.g. infarction anterior cerebral artery and etiology e.g. embolic infarction.
  • INFARCTION MIDDLE CEREBRAL ARTERY-. necrosis occurring in the middle cerebral artery distribution system which brings blood to the entire lateral aspects of each cerebral hemisphere. clinical signs include impaired cognition; aphasia; agraphia; weak and numbness in the face and arms contralaterally or bilaterally depending on the infarction.

Convert I63.8 to ICD-9

  • 434.91 - Crbl art ocl NOS w infrc (Approximate Flag)

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Cerebrovascular diseases (I60-I69)
      • Cerebral infarction (I63)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - Code Deleted, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Ischemic Stroke

A stroke is a medical emergency. There are two types - ischemic and hemorrhagic. Ischemic stroke is the most common type. It is usually caused by a blood clot that blocks or plugs a blood vessel in the brain. This keeps blood from flowing to the brain. Within minutes, brain cells begin to die. Another cause is stenosis, or narrowing of the artery. This can happen because of atherosclerosis, a disease in which plaque builds up inside your arteries. Transient ischemic attacks (TIAs) occur when the blood supply to the brain is interrupted briefly. Having a TIA can mean you are at risk for having a more serious stroke.

Symptoms of stroke are

  • Sudden numbness or weakness of the face, arm or leg (especially on one side of the body)
  • Sudden confusion, trouble speaking or understanding speech
  • Sudden trouble seeing in one or both eyes
  • Sudden trouble walking, dizziness, loss of balance or coordination
  • Sudden severe headache with no known cause

It is important to treat strokes as quickly as possible. Blood thinners may be used to stop a stroke while it is happening by quickly dissolving the blood clot. Post-stroke rehabilitation can help people overcome disabilities caused by stroke damage.

NIH: National Institute of Neurological Disorders and Stroke


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