I25.730 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris

ICD-10-CM 2027 diagnosis code · Ischemic heart diseases

Billable code

ICD-10-CM code I25.730

Code: I25.730 (claims format: I25730)
Description: Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris
Short description: Athscl nonautologous biological CABG w unstable ang pctrs
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I20-I25 Ischemic heart diseases
Parent codes: I25 › I25.7 › I25.73

Notes for I25.730

Excludes1 (not coded here):

unstable angina without atherosclerosis of nonautologous biological coronary artery bypass graft(s) (I20.0)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I25 – Chronic ischemic heart disease

Excludes2 (not included here):

non-ischemic myocardial injury (I5A)

Use additional code:

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)

I25.7 – Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris

Excludes1 (not coded here):

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)

Use additional code:

code, if applicable, to identify:
coronary atherosclerosis due to calcified coronary lesion (I25.84)
coronary atherosclerosis due to lipid rich plaque (I25.83)

Block I20-I25

Code also:

the presence of hypertension (I10-I1A)

Index terms for I25.730

Entries in the ICD-10-CM alphabetic index that lead to this code:

Arteriosclerosis, arteriosclerotic, coronary, bypass graft, nonautologous biological, with, angina pectoris, unstable

Related codes in I25.73

Frequently asked questions

What is ICD-10 code I25.730?

I25.730 is the ICD-10-CM code for atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris, in the block I20-I25 (Ischemic heart diseases).

Is I25.730 a billable code?

Yes. I25.730 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I25.730 belong to?

It belongs to category I25 – Chronic ischemic heart disease.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.