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ICD-10 Guide
ICD-10 CodesI63.29

I63.29

Billable

Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries

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

Code Description

ICD-10 I63.29 is a billable code used to indicate a diagnosis of cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries.

Key Diagnostic Point:

Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteries refers to a type of stroke that occurs when blood flow to a part of the brain is obstructed due to narrowing or blockage of arteries that supply blood to the brain, excluding the major arteries like the carotids. The clinical presentation may include sudden onset of neurological deficits such as weakness, numbness, difficulty speaking, or loss of coordination. The anatomy involved includes the precerebral arteries, which are smaller vessels branching from the carotid arteries and supplying blood to the brain. Disease progression can vary; some patients may experience transient ischemic attacks (TIAs) before a full stroke, while others may have a sudden and severe presentation. Diagnostic considerations include imaging studies like CT or MRI to identify the infarction and assess the extent of vascular occlusion. Risk factors include hypertension, diabetes, hyperlipidemia, and lifestyle factors such as smoking and obesity, which contribute to the development of atherosclerosis in these vessels.

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 underlying conditions.
  • Documentation requirements: Detailed clinical notes and imaging reports are necessary.
  • Coding specificity: Requires understanding of vascular territories and differentiation from other stroke types.

Audit Risk Factors

  • Common coding errors: Misidentifying the type of stroke or occlusion.
  • Documentation gaps: Incomplete clinical notes or lack of imaging results.
  • Billing challenges: Potential denials due to insufficient documentation or unclear diagnosis.

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. Quality measures focus on timely intervention and management of risk factors to prevent recurrence. Healthcare utilization patterns indicate increased hospital admissions and rehabilitation services for stroke patients, highlighting the need for effective prevention strategies and management of cardiovascular health.

ICD-9 vs ICD-10

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality rates associated with stroke. Quality measures focus on timely intervention and management of risk factors to prevent recurrence. Healthcare utilization patterns indicate increased hospital admissions and rehabilitation services for stroke patients, highlighting the need for effective prevention strategies and management of cardiovascular health.

Reimbursement & Billing Impact

Reimbursement considerations include the severity of the stroke and associated treatments. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for imaging studies. Best practices include ensuring that all relevant clinical notes, imaging results, and treatment plans are clearly documented and linked to the diagnosis to support claims.

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 I63.29?

I63.29 covers cerebral infarctions resulting from occlusion or stenosis of precerebral arteries that are not specified as carotid or vertebral. This includes various forms of ischemic strokes where the exact artery involved is not identified.

When should I63.29 be used instead of related codes?

I63.29 should be used when the cerebral infarction is confirmed but the specific artery causing the occlusion or stenosis is not documented. If a specific artery is identified, a more specific code should be used.

What documentation supports I63.29?

Documentation should include a detailed clinical history, neurological examination findings, imaging studies (CT/MRI) showing the infarction, and any relevant lab results that support the diagnosis of cerebral infarction.