---
title: "ICD-10-CM I25.700: Atherosclerosis of coronary artery… | BillingBrief"
description: "ICD-10-CM code I25.700: Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina. Category, related codes, and the official…"
canonical: "https://billingbrief.com/icd10/i25.700/"
language: "en"
---

# I25.700 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina…

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris

## 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.

-   unstable angina pectoris without atherosclerosis of coronary artery bypass graft (I20.0)
-   atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris ([I25.812](https://billingbrief.com/icd10/i25.812/))
-   atherosclerosis of coronary artery bypass graft(s) without angina pectoris ([I25.810](https://billingbrief.com/icd10/i25.810/))
-   atherosclerosis of native coronary artery of transplanted heart without angina pectoris ([I25.811](https://billingbrief.com/icd10/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](https://billingbrief.com/icd10/i25.84/))
-   coronary atherosclerosis due to lipid rich plaque ([I25.83](https://billingbrief.com/icd10/i25.83/))
-   code to identify:
-   chronic total occlusion of coronary artery ([I25.82](https://billingbrief.com/icd10/i25.82/))
-   exposure to environmental tobacco smoke (Z77.22)
-   history of tobacco dependence ([Z87.891](https://billingbrief.com/icd10/z87.891/))
-   occupational exposure to environmental tobacco smoke (Z57.31)
-   tobacco dependence (F17.-)
-   tobacco use ([Z72.0](https://billingbrief.com/icd10/z72.0/))

### Code also

A second code may be needed. Sequencing depends on the encounter.

-   the presence of hypertension ([I10](https://billingbrief.com/icd10/i10/)\-I1A)

## Related codes

-   [`I25.701` Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris… ICD-10-CM](https://billingbrief.com/icd10/i25.701/)
-   [`I25.702` Atherosclerosis of coronary artery bypass graft(s), unspecified, with refractory angina… ICD-10-CM](https://billingbrief.com/icd10/i25.702/)
-   [`I25.708` Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of… ICD-10-CM](https://billingbrief.com/icd10/i25.708/)
-   [`I25.709` Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina… ICD-10-CM](https://billingbrief.com/icd10/i25.709/)
-   [`I25.710` Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina… ICD-10-CM](https://billingbrief.com/icd10/i25.710/)
-   [`I25.711` Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris… ICD-10-CM](https://billingbrief.com/icd10/i25.711/)
-   [`I25.712` Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory… ICD-10-CM](https://billingbrief.com/icd10/i25.712/)
-   [`I25.718` Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of… ICD-10-CM](https://billingbrief.com/icd10/i25.718/)

## Common questions

### Is I25.700 a billable code?

Yes. I25.700 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

I25 Chronic ischemic heart disease

Chapter

Diseases of the circulatory system

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).