2021 ICD-10-CM Code I65.8

Occlusion and stenosis of other precerebral arteries

Version 2021
Billable Code

Valid for Submission

I65.8 is a billable diagnosis code used to specify a medical diagnosis of occlusion and stenosis of other precerebral arteries. The code I65.8 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code I65.8 might also be used to specify conditions or terms like abducens nerve palsy, anterior choroidal artery thrombosis, bilateral occlusion of pontine arteries, embolism of internal auditory artery, multiple and bilateral precerebral artery stenosis , occlusion of internal auditory artery, etc.

ICD-10:I65.8
Short Description:Occlusion and stenosis of other precerebral arteries
Long Description:Occlusion and stenosis of other precerebral arteries

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I65.8 are found in the index:

Approximate Synonyms

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

Convert I65.8 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I65.8 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Vascular Diseases

What are vascular diseases?

Your vascular system is your body's network of blood vessels. It includes your

Vascular diseases are conditions which affect your vascular system. They are common and can be serious. Some types include

What causes vascular diseases?

The causes of vascular diseases depend on the specific disease. These causes include

Sometimes the cause is unknown.

Who is at risk for vascular diseases?

The risk factors for vascular diseases can vary, depending on the specific disease. But some of the more common risk factors include

What are the symptoms of vascular diseases?

The symptoms for each disease are different.

How are vascular diseases diagnosed?

To make a diagnosis, your health care provider will do a physical exam and ask about your symptoms and medical history. You may have imaging tests and/or blood tests.

How are vascular diseases treated?

Which treatment you get depends on which vascular disease you have and how severe it is. Types of treatments for vascular diseases include

Can vascular diseases be prevented?

There are steps you can take to help prevent vascular diseases:


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)