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ICD-10 Guide
ICD-10 CodesI63.039

I63.039

Billable

Cerebral infarction due to thrombosis of unspecified carotid artery

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

Code Description

ICD-10 I63.039 is a billable code used to indicate a diagnosis of cerebral infarction due to thrombosis of unspecified carotid artery.

Key Diagnostic Point:

Cerebral infarction due to thrombosis of an unspecified carotid artery occurs when a blood clot obstructs blood flow to the brain, leading to ischemia and subsequent tissue death. The carotid arteries, which supply blood to the brain, face the risk of thrombosis due to various factors including atherosclerosis, hypertension, and hyperlipidemia. Clinical presentation may include sudden onset of neurological deficits such as weakness, speech difficulties, and visual disturbances. The disease progression can vary; some patients may experience transient ischemic attacks (TIAs) prior to a full stroke, while others may present with acute symptoms. Diagnostic considerations include neuroimaging (CT or MRI) to confirm the presence of an infarct and vascular imaging to assess carotid artery patency. Early intervention is crucial to minimize brain damage and improve outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires imaging and clinical assessment to confirm diagnosis.
  • Treatment complexity: May involve anticoagulation, surgical intervention, or rehabilitation.
  • Documentation requirements: Detailed clinical notes and imaging results are essential.
  • Coding specificity: Requires precise identification of the affected artery and cause.

Audit Risk Factors

  • Common coding errors: Misidentification of the affected artery can lead to incorrect coding.
  • Documentation gaps: Insufficient clinical details may result in denials or audits.
  • Billing challenges: Lack of specificity can affect reimbursement rates and claims processing.

Specialty Focus

Medical Specialties

Neurology

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

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

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Effective management and timely intervention can reduce long-term disability and improve quality of life. Understanding the epidemiology of stroke, including risk factors such as hypertension and diabetes, can inform public health initiatives aimed at reducing incidence rates and improving healthcare utilization patterns.

ICD-9 vs ICD-10

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Effective management and timely intervention can reduce long-term disability and improve quality of life. Understanding the epidemiology of stroke, including risk factors such as hypertension and diabetes, can inform public health initiatives aimed at reducing incidence rates and improving healthcare utilization patterns.

Reimbursement & Billing Impact

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Effective management and timely intervention can reduce long-term disability and improve quality of life. Understanding the epidemiology of stroke, including risk factors such as hypertension and diabetes, can inform public health initiatives aimed at reducing incidence rates and improving healthcare utilization patterns.

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 I63.039?

I63.039 covers cerebral infarction specifically due to thrombosis of an unspecified carotid artery. This includes cases where the exact artery affected cannot be determined, but the clinical presentation aligns with cerebral ischemia resulting from thrombotic occlusion.

When should I63.039 be used instead of related codes?

I63.039 should be used when there is a confirmed cerebral infarction due to thrombosis of a carotid artery, but the specific artery cannot be identified. If the right or left carotid artery is specified, the corresponding codes (I63.031 or I63.032) should be used instead.

What documentation supports I63.039?

Documentation should include clinical findings, imaging results confirming cerebral infarction, and any relevant history of vascular disease. Detailed notes on the patient's symptoms, onset, and any prior TIAs are also critical.