What does ICD-10 code I24 mean?

ICD-10 code I24 is the standardized code used for other acute ischemic heart diseases in medical records and coding systems.

When is ICD-10 code I24 used?

Doctors, hospitals, and insurers may use ICD-10 code I24 when recording other acute ischemic heart diseases in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code I24 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code I24: Other acute ischemic heart diseases

Name: ICD-10 Code I24: Other acute ischemic heart diseases
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:12:42.288Z

I24 is an ICD-10 diagnosis entry used to group records related to Other acute ischemic heart diseases. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

When is it used?

May be used when a clinician documents other acute ischemic heart diseases in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

9Diseases of the circulatory system (I00-I99)

block

I20-I25Ischemic heart diseases

currentI20-I25

Official coding notes

Excludes1 (do not code together)

angina pectoris (I20.-)
transient myocardial ischemia in newborn (P29.4)

Excludes2 (may code together if documented)

non-ischemic myocardial injury (I5A)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

CardiologistGeneral PhysicianENT Specialist

Sibling codes

I20Angina pectoris I21Acute myocardial infarction I22Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction I23Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)I25Chronic ischemic heart disease

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

I24

Replacement codes

I24.0 — Acute coronary thrombosis not resulting in myocardial infarctionI24.1 — Dressler's syndromeI24.9 — Acute ischemic heart disease, unspecified

Common synonyms

Other acute ischemic heart diseases

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.