I20.81
I20.81: Angina pectoris with coronary microvascular dysfunction
Billable / specific codeICD-10-CM
I20.81 is a billable, specific ICD-10-CM code for angina pectoris with coronary microvascular dysfunction. It is valid for submission on a claim.
Check I20.81 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Angina pectoris with coronary microvascular disease
Excludes1 inherited from the categories above I20.81
A category’s note binds every code beneath it.
Other codes that can never be billed with I20.81
Their own Excludes1 notes name this code, so the conflict is not listed above.
- I24Other acute ischemic heart diseases
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
I20.81 is named in 34 Medicare coverage policies: 34 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
- A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
Alphabetic index entries that lead here
- Angina›with›coronary microvascular disease
- Angina›with›coronary microvascular dysfunction
- Dysfunction›coronary microvascular›with›angina pectoris
- Disease, diseased›coronary›microvascular›with›angina pectoris
Code history
Unchanged in every release from FY2024 to FY2027.