2026 ICD-10-CM Diagnosis Code I24.0Acute coronary thrombosis not resulting in myocardial infarction
ICD-10-CM Codes›I00–I99›I20-I25›I24
- Billable — Valid for Submission
- Chronic Condition
I24.0 is a billable ICD-10-CM diagnosis code for acute coronary thrombosis not resulting in myocardial infarction. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Coronary atherosclerosis and other heart disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired abnormality of coronary sinus
- Acquired obstruction of coronary sinus
- Acquired occlusion of coronary sinus
- Acute coronary artery occlusion not resulting in myocardial infarction
- Coronary artery occlusion due to neoplastic disease
- Coronary artery thrombosis
- Coronary occlusion
- Coronary thrombosis not resulting in myocardial infarction
- Left anterior descending coronary artery thrombosis
- Left coronary artery occlusion
- Left main coronary artery thrombosis
- Obstruction of coronary sinus
- Occlusion of anterior descending branch of left coronary artery
- Occlusion of circumflex branch of left coronary artery
- Occlusion of coronary sinus
- Occlusion of diagonal branch of anterior descending branch of left coronary artery
- Occlusion of distal left anterior descending coronary artery
- Occlusion of distal left circumflex coronary artery
- Occlusion of distal portion of right coronary artery
- Occlusion of intermediate artery
- Occlusion of marginal branch of right coronary artery
- Occlusion of mid left anterior descending coronary artery
- Occlusion of mid left circumflex coronary artery
- Occlusion of mid portion of right coronary artery
- Occlusion of obtuse marginal branch of left circumflex coronary artery
- Occlusion of posterior descending branch of right coronary artery
- Occlusion of posterior lateral branch of left circumflex coronary artery
- Occlusion of posterior lateral branch of right coronary artery
- Occlusion of proximal left anterior descending coronary artery
- Occlusion of proximal left circumflex coronary artery
- Occlusion of proximal portion of right coronary artery
- Occlusion of septal branch of anterior descending branch of left coronary artery
- Right coronary artery occlusion
- Right main coronary artery thrombosis
- Side branch coronary artery occlusion due to and following percutaneous coronary intervention
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Acute coronary (artery) (vein) embolism not resulting in myocardial infarction
- Acute coronary (artery) (vein) occlusion not resulting in myocardial infarction
- Acute coronary (artery) (vein) thromboembolism not resulting in myocardial infarction
Type 1 Excludes
- atherosclerotic heart disease I25.1
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Embolism (multiple) (paradoxical) - I74.9
- coronary - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
- coronary (artery) (vein) (thrombotic) - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
- Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) - I82.90
- artery, arteries (postinfectional) - I74.9
- coronary - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
- coronary (artery) (vein) - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
- parietal - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
- ventricle - See Also: Infarct, myocardium;
- not resulting in infarction - I24.0
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Embolism(multiple) (paradoxical)
- artery
- coronary
- not resulting in infarction
- Occlusion, occluded
- artery
- coronary (acute) (thrombotic) (without myocardial infarction)
- Occlusion, occluded
- coronary (artery) (vein) (thrombotic)
- not resulting in infarction
- Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
- artery, arteries (postinfectional)
- coronary
- not resulting in infarction
- Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
- coronary (artery) (vein)
- not resulting in infarction
- Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
- parietal
- not resulting in infarction
- Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
- ventricle
- not resulting in infarction
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Coronary Occlusion
complete blockage of blood flow through one of the coronary arteries, usually from coronary atherosclerosis.
Patient EducationClinical
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.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert I24.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I24.0Overview
Is I24.0 (Other acute ischemic heart diseases) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute coronary thrombosis not resulting in myocardial infarction on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What is the ICD-9 equivalent of I24.0?
Under the General Equivalence Mappings, acute coronary thrombosis not resulting in myocardial infarction converts to ICD-9-CM 411.81 (acute cor occlsn w/o MI). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
