Is I25.709 a billable ICD-10-CM code?

Yes. I25.709 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I25.709 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 I25.709?

I25.709 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 I25.709 (I25.7) and apply to it just the same.

I25.709

I25.709 — Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris

Billable / specific codeICD-10-CM

I25.709 is a billable, specific ICD-10-CM code for atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified 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.

unspecified angina pectoris without atherosclerosis of coronary artery bypass graft (I20.9)

Excludes1 inherited from the categories above I25.709

These are not written on I25.709, but they bind it: a note on a category applies to every code beneath it. Billing I25.709 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

atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris (I25.812)
atherosclerosis of coronary artery bypass graft(s) without angina pectoris (I25.810)
atherosclerosis of native coronary artery of transplanted heart without angina pectoris (I25.811)

Excludes2 inherited from the categories above I25.709

Also inherited, and the opposite of Excludes1: these conditions are not part of I25.709, 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

I25.709 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

I25.709 is named in 26 Medicare coverage policies — 26 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
A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
A56476Billing and Coding: Cardiac Radionuclide Imaging

How I25.709 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 I25.709.

Arteriosclerosis, arteriosclerotic›coronary›bypass graft›with›angina pectoris
Arteriosclerosis, arteriosclerotic›coronary›bypass graft›with›ischemic chest pain

Code history

I25.709 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 I25.70. If I25.709 is not quite right, the correct code is usually one of these.

Questions about I25.709

Is I25.709 a billable ICD-10-CM code?: Yes. I25.709 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I25.709 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 I25.709?: I25.709 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 I25.709 (I25.7) and apply to it just the same.