ICD-10-CM Code I63.512

Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery

Version 2021 Replaced Code Billable Code

Valid for Submission

I63.512 is a billable code used to specify a medical diagnosis of cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code I63.512 might also be used to specify conditions or terms like cerebrovascular accident due to occlusion of left middle cerebral artery.

ICD-10:I63.512
Short Description:Cereb infrc d/t unsp occls or stenos of left mid cereb art
Long Description:Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery

Replaced Code

This code was replaced in the 2021 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, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).

  • I63.513 - Cereb infrc d/t unsp occls or stenos of bi middle cereb art
  • I63.513 - Cereb infrc d/t unsp occls or stenos of bi middle cereb art

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Cerebrovascular accident due to occlusion of left middle cerebral artery

Convert I63.512 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 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Ischemic Stroke

Also called: Embolic Stroke, Thrombotic 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

  • Preventing stroke (Medical Encyclopedia)
  • Stroke - discharge (Medical Encyclopedia)
  • Thrombolytic therapy (Medical Encyclopedia)

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