I25.710 — Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris
I25.710 is a billable, specific ICD-10-CM code for atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- unstable angina without atherosclerosis of autologous vein coronary artery bypass graft(s) (I20.0)
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- embolism or thrombus of coronary artery bypass graft(s) (T82.8-)
Excludes1 inherited from the categories above I25.710
These are not written on I25.710, but they bind it: a note on a category applies to every code beneath it. Billing I25.710 with anything listed here is a denial.
Written on I25.7 — Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
Excludes2 inherited from the categories above I25.710
Also inherited, and the opposite of Excludes1: these conditions are not part of I25.710, but a patient can have both, so you may code both.
Written on I25 — Chronic ischemic heart disease
- non-ischemic myocardial injury (I5A)
Risk adjustment
I25.710 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.
Medicare coverage
I25.710 is named in 60 Medicare coverage policies — 60 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
How I25.710 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I25.710.
- Arteriosclerosis, arteriosclerotic›coronary›bypass graft›autologous vein›with›angina pectoris›unstable
Code history
I25.710 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share I25.71. If I25.710 is not quite right, the correct code is usually one of these.
- I25.711Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.712Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory angina pectoris
- I25.718Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
- I25.719Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris
Questions about I25.710
- Is I25.710 a billable ICD-10-CM code?
- Yes. I25.710 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I25.710 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Ischemic heart diseases (I20-I25).
- What cannot be coded together with I25.710?
- I25.710 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I25.710 (I25.7) and apply to it just the same.