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  6. 2025 ICD-10-CM Code I24

2025 ICD-10-CM Diagnosis Code I24

Other acute ischemic heart diseases

ICD-10-CM Code:
I24
ICD-10 Code for:
Other acute ischemic heart diseases
Is Billable?
Not Valid for Submission
Code Navigator:

I24 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other acute ischemic heart diseases. The code is not specific and is NOT valid for the year 2025 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Other acute ischemic heart diseases

Non-specific codes like I24 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for other acute ischemic heart diseases:

  • Use I24.0 for Acute coronary thrombosis not resulting in myocardial infarction - BILLABLE CODE

  • Use I24.1 for Dressler's syndrome - BILLABLE CODE

  • I24.8 for Other forms of acute ischemic heart disease - NON-BILLABLE CODE

  • Use I24.81 for Acute coronary microvascular dysfunction - BILLABLE CODE

  • Use I24.89 for Other forms of acute ischemic heart disease - BILLABLE CODE

  • Use I24.9 for Acute ischemic heart disease, unspecified - BILLABLE CODE

Code Classification

  • Diseases of the circulatory system
    I00–I99
    • Ischemic heart diseases
      I20-I25
      • Other acute ischemic heart diseases
        I24

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • angina pectoris I20
  • transient myocardial ischemia in newborn P29.4

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • non-ischemic myocardial injury I5A

Patient Education


Coronary Artery Disease

Coronary artery disease (CAD) is the most common type of heart disease. It is the leading cause of death in the United States in both men and women.

CAD happens when the arteries that supply blood to heart muscle become hardened and narrowed. This is due to the buildup of cholesterol and other material, called plaque, on their inner walls. This buildup is called atherosclerosis. As it grows, less blood can flow through the arteries. As a result, the heart muscle can't get the blood or oxygen it needs. This can lead to chest pain (angina) or a heart attack. Most heart attacks happen when a blood clot suddenly cuts off the hearts' blood supply, causing permanent heart damage.

Over time, CAD can also weaken the heart muscle and contribute to heart failure and arrhythmias. Heart failure means the heart can't pump blood well to the rest of the body. Arrhythmias are changes in the normal beating rhythm of the heart.

NIH: National Heart, Lung, and Blood Institute


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.