ICD-10 I25.119
Billable / Specific HCC v28: 88Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
About ICD-10-CM I25.119
ICD-10-CM code I25.119 represents Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris. This is a billable/specific code in the Circulatory System chapter (block I25). The 2026 edition of ICD-10-CM I25.119 became effective on October 1, 2025.
Coding Tips for I25.119
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I25.119 is a CMS-HCC v28 risk-adjustment code (category 88). 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.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I25.119. Per CMS ICD-10-CM Tabular 2026.
- Atherosclerotic heart disease with angina NOS
- Atherosclerotic heart disease with ischemic chest pain
Type 1 Excludes
Pure excludes, these codes can never be coded together with I25.119. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- unspecified angina pectoris without atherosclerotic heart disease (I20.9)
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.
Medicare LCD Coverage for I25.119
Local Coverage Determinations (LCDs) from CMS MACs that list I25.119 as a covered diagnosis.
Showing top 10 of 521 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I25.119.
1 Aetna
3 Cigna
5 Medicare
CPT Codes Commonly Billed with I25.119
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
- 92979 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- C9607 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- C9600 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- 92937 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- 92920 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- C9608 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- 92943 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- C9601 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
- 92941 CMS LCD: Billing and Coding: Percutaneous Coronary Interventions CMS LCD
Convert I25.119 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 |
|---|---|---|
| I25.119 | 4139 | 10112 |
| I25.119 | 41401 | 10111 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I25.119
Other codes in section I20-I25 (Ischemic heart diseases).
ICD-10 I25.119, Billing FAQ
Is ICD-10 code I25.119 billable? +
Yes, I25.119 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to I25.119? +
ICD-10 I25.119 includes: Atherosclerotic heart disease with angina NOS; Atherosclerotic heart disease with ischemic chest pain.
What codes are Type 1 Excludes for I25.119? +
Type 1 Excludes (never code together with I25.119): unspecified angina pectoris without atherosclerotic heart disease (I20.9)
Does I25.119 affect Medicare Advantage HCC risk adjustment? +
Yes. I25.119 maps to CMS-HCC v28 category 88. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with I25.119? +
Procedures frequently paired with I25.119 include: 92928, 92979, C9607, C9600, 92937.
What ICD-9 codes does I25.119 map to? +
Per CMS GEMs, I25.119 maps to ICD-9 codes: 4139, 41401. 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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