I25.811 — Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
I25.811 is a billable, specific ICD-10-CM code for atherosclerosis of native coronary artery of transplanted heart without 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.
- atherosclerosis of native coronary artery of transplanted heart with angina pectoris (I25.75-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Atherosclerosis of native coronary artery of transplanted heart NOS
Other codes that can never be billed with I25.811
These codes carry an Excludes1 note pointing at I25.811. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I25.811 alone.
Risk adjustment
I25.811 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
I25.811 is named in 45 Medicare coverage policies — 45 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 I25.811 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 I25.811.
- Atherosclerosis›transplanted heart
- Arteriosclerosis, arteriosclerotic›coronary›transplanted heart
- Atherosclerosis›transplanted heart›native coronary artery
- Arteriosclerosis, arteriosclerotic›coronary›transplanted heart›native coronary artery
Related codes at this level
Codes that share I25.81. If I25.811 is not quite right, the correct code is usually one of these.
Questions about I25.811
- Is I25.811 a billable ICD-10-CM code?
- Yes. I25.811 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I25.811 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 I25.811?
- I25.811 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.