I25.721 Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina…
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- angina pectoris with documented spasm without atherosclerosis of autologous artery coronary artery bypass graft(s) (I20.1)
- 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
Not part of this code, but both can be coded when both are documented.
- non-ischemic myocardial injury (I5A)
Use additional code
Add a second code for the following, when documented.
- code, if applicable, to identify:
- coronary atherosclerosis due to calcified coronary lesion (I25.84)
- coronary atherosclerosis due to lipid rich plaque (I25.83)
- code to identify:
- chronic total occlusion of coronary artery (I25.82)
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Code also
A second code may be needed. Sequencing depends on the encounter.
- the presence of hypertension (I10-I1A)
Related codes
I25.712Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory… ICD-10-CMI25.718Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of… ICD-10-CMI25.719Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified… ICD-10-CMI25.720Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable… ICD-10-CMI25.722Atherosclerosis of autologous artery coronary artery bypass graft(s) with refractory… ICD-10-CMI25.728Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of… ICD-10-CMI25.729Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified… ICD-10-CMI25.730Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with… ICD-10-CM
Common questions
Is I25.721 a billable code?
Yes. I25.721 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.