I24.81: Acute coronary microvascular dysfunction
I24.81 is a billable, specific ICD-10-CM code for acute coronary microvascular dysfunction. It is valid for submission on a claim.
Check I24.81 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Acute (presentation of) coronary microvascular disease
Excludes1 inherited from the categories above I24.81
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above I24.81
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)
Risk adjustment
I24.81 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
I24.81 is named in 29 Medicare coverage policies: 29 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A53775Billing and Coding: Frequency and Duration for Cardiac Rehabilitation and Intensive Cardiac Rehabilitation
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56494Billing and Coding: Cardiovascular Nuclear Medicine
Alphabetic index entries that lead here
- Dysfunction›coronary microvascular›acute
- Disease, diseased›coronary›microvascular›acute
Code history
Unchanged in every release from FY2024 to FY2027.