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ICD-10 Guide
ICD-10 CodesI63.529

I63.529

Billable

Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral artery

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

Code Description

ICD-10 I63.529 is a billable code used to indicate a diagnosis of cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral artery.

Key Diagnostic Point:

Cerebral infarction due to unspecified occlusion or stenosis of the unspecified anterior cerebral artery refers to a type of stroke that occurs when blood flow to a part of the brain is blocked, leading to tissue death. The anterior cerebral artery (ACA) supplies blood to the medial portions of the frontal lobes and the superior medial parietal lobes. When occlusion or stenosis occurs, it can result in various neurological deficits, including weakness, sensory loss, and cognitive impairments. The clinical presentation may vary based on the extent of the infarction and the areas of the brain affected. Disease progression can lead to complications such as permanent disability or increased risk of subsequent strokes. Diagnostic considerations include imaging studies such as CT or MRI to confirm the presence of an infarct and to rule out other causes of neurological symptoms. Additionally, risk factors such as hypertension, diabetes, and hyperlipidemia should be assessed to guide treatment and prevention strategies.

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, rehabilitation, and management of risk factors.
  • Documentation requirements: Detailed clinical notes and imaging results are necessary.
  • Coding specificity: Requires accurate identification of the occlusion or stenosis site.

Audit Risk Factors

  • Common coding errors: Misidentification of the artery involved or the type of occlusion.
  • Documentation gaps: Incomplete clinical notes that do not specify the occlusion or stenosis.
  • Billing challenges: Potential denials due to lack of specificity or inadequate documentation.

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 prevention strategies can reduce healthcare utilization and improve quality measures related to stroke care. Understanding the epidemiology of strokes, including risk factors and outcomes, is essential for healthcare providers to implement effective interventions and improve patient outcomes.

ICD-9 vs ICD-10

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Effective management and prevention strategies can reduce healthcare utilization and improve quality measures related to stroke care. Understanding the epidemiology of strokes, including risk factors and outcomes, is essential for healthcare providers to implement effective interventions and improve patient outcomes.

Reimbursement & Billing Impact

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Effective management and prevention strategies can reduce healthcare utilization and improve quality measures related to stroke care. Understanding the epidemiology of strokes, including risk factors and outcomes, is essential for healthcare providers to implement effective interventions and improve patient outcomes.

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 I63.529?

I63.529 covers cerebral infarctions resulting from unspecified occlusion or stenosis of the anterior cerebral artery, which may include ischemic strokes without clear etiology or identifiable vascular lesions.

When should I63.529 be used instead of related codes?

I63.529 should be used when the occlusion or stenosis of the anterior cerebral artery is unspecified, and no other specific codes apply. It is important to differentiate from codes that specify the type of occlusion or the artery involved.

What documentation supports I63.529?

Documentation should include clinical findings, imaging results confirming the infarction, and any relevant history of vascular disease or risk factors. Detailed notes on the patient's neurological status and treatment plan are also essential.