I24.0: Acute coronary thrombosis not resulting in myocardial infarction
I24.0 is a billable, specific ICD-10-CM code for acute coronary thrombosis not resulting in myocardial infarction. It is valid for submission on a claim.
Check I24.0 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- atherosclerotic heart disease (I25.1-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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
Excludes1 inherited from the categories above I24.0
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above I24.0
Not part of this code, but both may be coded when both are present.
Written on I24: Other acute ischemic heart diseases
- non-ischemic myocardial injury (I5A)
Other codes that can never be billed with I24.0
Their own Excludes1 notes name this code, so the conflict is not listed above.
- I25.82Chronic total occlusion of coronary artery
Risk adjustment
I24.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 229 Unstable Angina and Other Acute Ischemic Heart Disease0.240 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I24.0 is named in 35 Medicare coverage policies: 35 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
- A56476Billing and Coding: Cardiac Radionuclide Imaging
Alphabetic index entries that lead here
- Occlusion, occluded›artery›coronary(acute) (thrombotic) (without myocardial infarction)
- Occlusion, occluded›coronary›not resulting in infarction
- Thrombosis, thrombotic›coronary›not resulting in infarction
- Thrombosis, thrombotic›parietal›not resulting in infarction
- Thrombosis, thrombotic›ventricle›not resulting in infarction
- Embolism›artery›coronary›not resulting in infarction
- Thrombosis, thrombotic›artery, arteries›coronary›not resulting in infarction
Code history
Unchanged in every release from FY2024 to FY2027.