I25.118 ICD-10-CM Code: Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
I25.118 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Diseases of the circulatory system (I00-I99) / Ischemic heart diseases (I20-I25)
I25.118
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceAtherosclerotic heart disease of native coronary artery with other forms of angina pectoris
Narrowing of heart arteries causing chest pain with characteristics that don't fit the standard angina patterns.
Buddy Insight
This code captures atherosclerotic heart disease of native coronary arteries with angina presentations that do not fit the standard classifications of unstable, vasospastic, or refractory angina.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
Context neededHCC 88
Coefficient needs member context
RXHCC
Context neededHCC 188
Coefficient needs member context
Code Book Path
Inclusion Terms
Official- Atherosclerotic cardiovascular diseaseInherited from I25.1
- Coronary (artery) atheromaInherited from I25.1
- Coronary (artery) atherosclerosisInherited from I25.1
- Coronary (artery) diseaseInherited from I25.1
- Coronary (artery) sclerosisInherited from I25.1
Excludes 2
Official- certain conditions originating in the perinatal period (P04-P96)Inherited from I00-I99, I25, I25.1
- certain infectious and parasitic diseases (A00-B99)Inherited from I00-I99, I25, I25.1
- complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from I00-I99, I25, I25.1
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Inherited from I00-I99, I25, I25.1
- endocrine, nutritional and metabolic diseases (E00-E88)Inherited from I00-I99, I25, I25.1
- injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from I00-I99, I25, I25.1
- neoplasms (C00-D49)Inherited from I00-I99, I25, I25.1
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from I00-I99, I25, I25.1
- systemic connective tissue disorders (M30-M36)Inherited from I00-I99, I25, I25.1
- transient cerebral ischemic attacks and related syndromes (G45.-)Inherited from I00-I99, I25, I25.1
- non-ischemic myocardial injury (I5A)Inherited from I00-I99, I25, I25.1
- atheroembolism (I75.-)Inherited from I00-I99, I25, I25.1
- atherosclerosis of coronary artery bypass graft(s) and transplanted heart (I25.7-)Inherited from I00-I99, I25, I25.1
Related Codes
Includes
OfficialNo Includes notes are included in this display for I25.118. Check the code and parent instructions in the Code Book.
Excludes 1
Official- other forms of angina pectoris without atherosclerotic heart disease (I20.8-)
Code First
OfficialNo Code First sequencing instructions are included in this display for I25.118. Check the code and parent instructions in the Code Book.
Use Additional
Official- code to identify:Inherited from I25, I25.1
- chronic total occlusion of coronary artery (I25.82)Inherited from I25, I25.1
- exposure to environmental tobacco smoke (Z77.22)Inherited from I25, I25.1
- history of tobacco dependence (Z87.891)Inherited from I25, I25.1
- occupational exposure to environmental tobacco smoke (Z57.31)Inherited from I25, I25.1
- tobacco dependence (F17.-)Inherited from I25, I25.1
- tobacco use (Z72.0)Inherited from I25, I25.1
- code, if applicable, to identify:Inherited from I25, I25.1
- coronary atherosclerosis due to calcified coronary lesion (I25.84)Inherited from I25, I25.1
- coronary atherosclerosis due to lipid rich plaque (I25.83)Inherited from I25, I25.1
Code Also
Official- the presence of hypertension (I10-I1A)Inherited from I20-I25
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is I25.118 an HCC code?
I25.118 has no mapping under the current CMS-HCC V28 community payment model. I25.118 has a separate mapping under the CMS-HCC ESRD model (HCC 88 (Angina Pectoris)) and the Part D RxHCC model (HCC 188 (Coronary Artery Disease)); the applicable result needs member context.
- Code
- I25.118
- Description
- Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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What This Code Means
I25.118 is the ICD-10-CM diagnosis code for atherosclerotic heart disease of native coronary artery with other forms of angina pectoris. Narrowing of heart arteries causing chest pain with characteristics that don't fit the standard angina patterns. I25.118 sits in the ICD-10-CM chapter for diseases of the circulatory system (i00-i99), within the section covering ischemic heart diseases (i20-i25).
I25.118 has no mapping under the current CMS-HCC V28 community payment model. I25.118 has a separate mapping under the CMS-HCC ESRD model (HCC 88 (Angina Pectoris)) and the Part D RxHCC model (HCC 188 (Coronary Artery Disease)); the applicable result needs member context. Do not assign V28 risk adjustment value from this page; verify the applicable model and payment year before using this code for risk adjustment.
Native-artery CAD with other forms of angina pectoris, exertional angina, stable angina, or any angina form not captured by I25.110 (unstable) or I25.111 (spasm). Provider narrative should name the angina pattern.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for I25.118 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Native-artery CAD with other forms of angina pectoris, exertional angina, stable angina, or any angina form not captured by I25.110 (unstable) or I25.111 (spasm). Provider narrative should name the angina pattern.
- •Do not report I25.118 and a separate I20.x code together, the combination code bundles the angina component. Also prefer I25.110 when the angina is characterized as unstable.
- •Among the I25.11x angina codes only I25.110 (unstable angina) maps, to HCC 229; 'other forms of angina' carries no V28 coefficient.
Clinical Significance
This code captures atherosclerotic heart disease of native coronary arteries with angina presentations that do not fit the standard classifications of unstable, vasospastic, or refractory angina. This may include atypical angina equivalents such as exertional dyspnea, nocturnal angina, or other variant presentations. Proper capture ensures that the anginal component of the disease is coded alongside the underlying coronary artery disease.
Documentation Requirements
- ✓Documentation of coronary artery disease involving native vessels
- ✓Description of the specific angina presentation that does not fit unstable, vasospastic, or refractory categories
- ✓Clinical characteristics of the anginal episodes
- ✓Diagnostic evidence supporting ischemia
- ✓Treatment plan
Excludes 1, Do NOT code together
- other forms of angina pectoris without atherosclerotic heart disease (I20.8-)
Commonly Confused Codes
- •I25.110: Same condition with unstable angina: for angina with crescendo pattern or new onset at rest
- •I25.111: Same condition with documented spasm: for confirmed vasospastic angina
- •I25.112: Same condition with refractory angina: for angina failing maximal medical therapy
- •I25.119: Same condition with unspecified angina: when the angina type cannot be determined at all