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ICD-10 Guide
ICD-10 CodesI25.799

I25.799

Billable

Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris

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

Code Description

ICD-10 I25.799 is a billable code used to indicate a diagnosis of atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris.

Key Diagnostic Point:

I25.799 refers to atherosclerosis affecting other coronary artery bypass grafts, accompanied by unspecified angina pectoris. This condition arises when there is a buildup of plaque in the grafts used to bypass blocked coronary arteries, leading to reduced blood flow to the heart muscle. Clinically, patients may present with chest pain or discomfort, which can vary in intensity and frequency, often exacerbated by physical exertion or emotional stress. The anatomy involved includes the coronary arteries and the grafts, which may be saphenous veins or arterial conduits. Disease progression can lead to worsening angina, myocardial ischemia, or even myocardial infarction if not managed appropriately. Diagnostic considerations include patient history, physical examination, and imaging studies such as angiography or stress tests to assess graft patency and coronary artery status. It is crucial to differentiate this condition from other forms of coronary artery disease to ensure appropriate management and treatment strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires thorough evaluation of graft status and patient symptoms.
  • Treatment complexity: May involve medication management, lifestyle changes, or further surgical interventions.
  • Documentation requirements: Detailed clinical documentation is necessary to support the diagnosis and treatment plan.
  • Coding specificity: Requires precise coding to differentiate from other coronary artery diseases.

Audit Risk Factors

  • Common coding errors: Misidentification of the type of coronary artery disease.
  • Documentation gaps: Incomplete patient history or lack of imaging results.
  • Billing challenges: Potential for denials if documentation does not clearly support the diagnosis.

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

Cardiothoracic Surgery

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

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CPT Code

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CPT Code

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Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of I25.799 lies in its association with increased morbidity and potential mortality due to cardiovascular events. Understanding this condition is vital for improving population health outcomes, as it affects a considerable number of patients with a history of coronary artery bypass grafting. Quality measures related to the management of angina and atherosclerosis can enhance healthcare utilization patterns, leading to better resource allocation and improved patient care. Epidemiologically, this condition reflects the broader trends in cardiovascular disease prevalence and the importance of preventive measures.

ICD-9 vs ICD-10

The clinical significance of I25.799 lies in its association with increased morbidity and potential mortality due to cardiovascular events. Understanding this condition is vital for improving population health outcomes, as it affects a considerable number of patients with a history of coronary artery bypass grafting. Quality measures related to the management of angina and atherosclerosis can enhance healthcare utilization patterns, leading to better resource allocation and improved patient care. Epidemiologically, this condition reflects the broader trends in cardiovascular disease prevalence and the importance of preventive measures.

Reimbursement & Billing Impact

The clinical significance of I25.799 lies in its association with increased morbidity and potential mortality due to cardiovascular events. Understanding this condition is vital for improving population health outcomes, as it affects a considerable number of patients with a history of coronary artery bypass grafting. Quality measures related to the management of angina and atherosclerosis can enhance healthcare utilization patterns, leading to better resource allocation and improved patient care. Epidemiologically, this condition reflects the broader trends in cardiovascular disease prevalence and the importance of preventive measures.

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 I25.799?

I25.799 covers atherosclerosis affecting other coronary artery bypass grafts, which may present with symptoms of angina pectoris. It does not specify the type of angina, allowing for a broad range of presentations.

When should I25.799 be used instead of related codes?

I25.799 should be used when the patient has atherosclerosis of bypass grafts with unspecified angina, distinguishing it from codes that specify native coronary artery disease or other specific conditions.

What documentation supports I25.799?

Documentation should include a detailed patient history, physical examination findings, results from imaging studies, and any treatment plans that reflect the patient's condition and symptoms.