ICD-10-CM 2027 diagnosis code
I25.708Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
I25.708 is a valid, billable ICD-10-CM code for atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Atherosclerosis of CABG, unsp, w oth angina pectoris
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About I25.708
I25.708 is the ICD-10-CM diagnosis code for atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris. It belongs to category I25 (chronic ischemic heart disease), block I20-I25 (ischemic heart diseases) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within I25.70, choose I25.708 (other forms of angina pectoris) only when documentation doesn't support a more specific option: unstable angina pectoris (I25.700), with documented spasm (I25.701), refractory angina pectoris (I25.702) and unspecified angina pectoris (I25.709).
Don't report I25.708 together with the conditions in its Excludes1 note: other forms of angina pectoris without atherosclerosis of coronary artery bypass graft (I20.8-).
Use an additional 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.-) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 302 (Atherosclerosis with MCC, relative weight 1.1984) and DRG 303 (Atherosclerosis without MCC, relative weight 0.6612), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
The Medicare Code Editor expects this diagnosis only for patients age 15 through 124.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 413.9 (other and unspecified angina pectoris) and 414.05 (coronary atherosclerosis of unspecified bypass graft).
Coding notes
- other forms of angina pectoris without atherosclerosis of coronary artery bypass graft (I20.8-)
Notes that apply from higher levels
Instructions written at a parent level also apply to I25.708.
› From I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
› From I25 Chronic ischemic heart disease
- non-ischemic myocardial injury (I5A)
Broader instructions also apply from I20-I25 Ischemic heart diseases and Chapter 9: Diseases of the circulatory system.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to I25.708.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 05 · Diseases and Disorders of the Circulatory System
ICD-9-CM equivalent
Converter →- 413.9Other and unspecified angina pectorisapproximate, combination
- 414.05Coronary atherosclerosis of unspecified bypass graftapproximate, combination
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about I25.708
Is I25.708 billable?
- Yes. I25.708 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I25.708 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I25.708 as a principal diagnosis.
Is I25.708 a CC or MCC?
- No. I25.708 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does I25.708 group to?
- I25.708 is used in the MS-DRG v44.0 logic for MS-DRG 302 (Atherosclerosis with MCC) and MS-DRG 303 (Atherosclerosis without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for I25.708?
- The CMS General Equivalence Mappings map I25.708 to ICD-9-CM 413.9 and 414.05.