ICD-10 I25.710
Billable / Specific HCC v28: 87 CCAtherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris
About ICD-10-CM I25.710
ICD-10-CM code I25.710 represents Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris. This is a billable/specific code in the Circulatory System chapter (block I25). The 2026 edition of ICD-10-CM I25.710 became effective on October 1, 2025.
Coding Tips for I25.710
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I25.710 is a CMS-HCC v28 risk-adjustment code (category 87). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
I25.710 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Type 1 Excludes
Pure excludes, these codes can never be coded together with I25.710. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- unstable angina without atherosclerosis of autologous vein coronary artery bypass graft(s) (I20.0)
Type 2 Excludes
Not included here, the excluded code is not part of I25.710, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- embolism or thrombus of coronary artery bypass graft(s) (T82.8-)
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Inpatient DRG Impact, CC
codes Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for I25.710
Local Coverage Determinations (LCDs) from CMS MACs that list I25.710 as a covered diagnosis.
Showing top 10 of 732 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I25.710.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with I25.710
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 92928 PCI with stent — CAD native vessel, unstable angina, STEMI/NSTEMI all arteries, ischemic cardiomyopathy, bypass graft disease Interventional Cardiology
- 83880 CMS LCD: Billing and Coding: B-type Natriuretic Peptide (BNP) Testing CMS LCD
- 93922 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93931 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93923 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93930 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93925 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93926 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 93924 CMS LCD: Billing and Coding: Non-Invasive Peripheral Arterial Vascular Studies CMS LCD
- 92979 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
Convert I25.710 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| I25.710 | 4111 | 10112 |
| I25.710 | 41402 | 10111 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I25.710
Other codes in section I20-I25 (Ischemic heart diseases).
ICD-10 I25.710, Billing FAQ
Is ICD-10 code I25.710 billable? +
Yes, I25.710 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for I25.710? +
Type 1 Excludes (never code together with I25.710): unstable angina without atherosclerosis of autologous vein coronary artery bypass graft(s) (I20.0)
What codes are Type 2 Excludes for I25.710? +
Type 2 Excludes (may be coded together when both conditions exist): embolism or thrombus of coronary artery bypass graft(s) (T82.8-)
Does I25.710 affect Medicare Advantage HCC risk adjustment? +
Yes. I25.710 maps to CMS-HCC v28 category 87. Capture this diagnosis annually for accurate Medicare Advantage risk score.
Is I25.710 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with I25.710? +
Procedures frequently paired with I25.710 include: 92928, 83880, 93922, 93931, 93923.
What ICD-9 codes does I25.710 map to? +
Per CMS GEMs, I25.710 maps to ICD-9 codes: 4111, 41402. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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