2021 ICD-10-CM Code I99.8

Other disorder of circulatory system

Version 2021
Billable Code
MS-DRG Mapping

Valid for Submission

I99.8 is a billable diagnosis code used to specify a medical diagnosis of other disorder of circulatory system. The code I99.8 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 I99.8 might also be used to specify conditions or terms like abnormality of hepatic vein, acquired arteriovenous malformation, acute vascular insufficiency, acute visceral ischemia, alteration in tissue perfusion , arterial ischemia, etc.

ICD-10:I99.8
Short Description:Other disorder of circulatory system
Long Description:Other disorder of circulatory system

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 I99.8 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 I99.8 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I99.8 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.

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)