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ICD-10 Guide
ICD-10 CodesI25.41

I25.41

Billable

Coronary artery aneurysm

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I25.41 is a billable code used to indicate a diagnosis of coronary artery aneurysm.

Key Diagnostic Point:

Coronary artery aneurysm (CAA) is a rare cardiovascular condition characterized by the abnormal dilation of a coronary artery, which can lead to various complications, including thrombosis, myocardial ischemia, and sudden cardiac death. Clinically, patients may present with chest pain, shortness of breath, or may be asymptomatic. The anatomy involved primarily includes the coronary arteries, which supply blood to the heart muscle. Disease progression can vary; some aneurysms remain stable, while others may enlarge or rupture, necessitating careful monitoring. Diagnostic considerations include imaging techniques such as echocardiography, coronary angiography, and CT angiography, which help visualize the aneurysm's size and location. Risk factors for CAA include atherosclerosis, connective tissue disorders, and infections. Early detection and management are crucial to prevent adverse outcomes, making accurate coding essential for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires advanced imaging and differential diagnosis.
  • Treatment complexity: May involve medical management or surgical intervention.
  • Documentation requirements: Detailed clinical notes and imaging reports are necessary.
  • Coding specificity: Requires precise coding to differentiate from other coronary artery diseases.

Audit Risk Factors

  • Common coding errors: Misclassification with other coronary artery diseases.
  • Documentation gaps: Incomplete imaging reports or clinical notes.
  • Billing challenges: Potential denials due to lack of specificity in documentation.

Specialty Focus

Medical Specialties

Cardiology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Interventional Radiology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Coronary artery aneurysms, while rare, can have significant clinical implications, including increased risk of myocardial infarction and sudden cardiac death. Understanding the epidemiology of CAA is crucial for population health, as it may be associated with underlying conditions such as connective tissue disorders. Quality measures related to timely diagnosis and management can improve patient outcomes and reduce healthcare utilization, highlighting the importance of accurate coding and documentation.

ICD-9 vs ICD-10

Coronary artery aneurysms, while rare, can have significant clinical implications, including increased risk of myocardial infarction and sudden cardiac death. Understanding the epidemiology of CAA is crucial for population health, as it may be associated with underlying conditions such as connective tissue disorders. Quality measures related to timely diagnosis and management can improve patient outcomes and reduce healthcare utilization, highlighting the importance of accurate coding and documentation.

Reimbursement & Billing Impact

Reimbursement may be affected by the specificity of the diagnosis and the completeness of the clinical notes. Common denials can occur if the documentation does not clearly establish the presence of an aneurysm or if imaging studies are not adequately detailed. Best practices include ensuring that all imaging reports are attached to claims and that clinical notes reflect the patient's symptoms and the rationale for diagnostic testing.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by I25.41?

I25.41 specifically covers coronary artery aneurysms, which may arise from atherosclerosis, congenital defects, or inflammatory conditions. It does not include aneurysms of other vascular structures.

When should I25.41 be used instead of related codes?

I25.41 should be used when there is a confirmed diagnosis of a coronary artery aneurysm, as opposed to other codes that may describe coronary artery disease without aneurysm formation.

What documentation supports I25.41?

Documentation should include imaging studies that confirm the presence of an aneurysm, clinical notes detailing symptoms, and any relevant history of cardiovascular disease or risk factors.