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ICD-10 Guide
ICD-10 CodesI63.432

I63.432

Billable

Cerebral infarction due to embolism of left posterior cerebral artery

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

Code Description

ICD-10 I63.432 is a billable code used to indicate a diagnosis of cerebral infarction due to embolism of left posterior cerebral artery.

Key Diagnostic Point:

Cerebral infarction due to embolism of the left posterior cerebral artery is a condition characterized by the obstruction of blood flow to the left posterior cerebral artery, leading to ischemic damage in the brain. This artery supplies blood to critical areas involved in visual processing and other cognitive functions. Clinical presentation often includes sudden onset of visual disturbances, hemianopsia, and potential cognitive deficits. The disease progression can vary, with some patients experiencing transient ischemic attacks (TIAs) prior to a full-blown stroke. Diagnostic considerations include neuroimaging techniques such as CT or MRI to confirm the presence of an infarct and to rule out hemorrhagic stroke. Risk factors include atrial fibrillation, carotid artery disease, and other cardiovascular conditions that predispose to embolic events. Early recognition and intervention are crucial to minimize neurological deficits and improve outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires imaging and clinical correlation
  • Treatment complexity: May involve anticoagulation or surgical intervention
  • Documentation requirements: Detailed clinical notes and imaging results needed
  • Coding specificity: Requires precise identification of the affected artery

Audit Risk Factors

  • Common coding errors: Misidentification of the affected artery
  • Documentation gaps: Incomplete clinical notes regarding symptoms and imaging
  • Billing challenges: Potential denials due to lack of specificity in 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

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 associated with stroke. Effective management of conditions like I63.432 can improve quality measures related to stroke care and reduce healthcare utilization patterns. Epidemiologically, the incidence of strokes varies by demographic factors, emphasizing the need for targeted prevention and intervention strategies in high-risk populations.

ICD-9 vs ICD-10

Cerebral infarctions significantly impact population health, contributing to morbidity and mortality associated with stroke. Effective management of conditions like I63.432 can improve quality measures related to stroke care and reduce healthcare utilization patterns. Epidemiologically, the incidence of strokes varies by demographic factors, emphasizing the need for targeted prevention and intervention strategies in high-risk populations.

Reimbursement & Billing Impact

Reimbursement considerations include verifying the patient's insurance coverage for imaging studies and potential treatments. Common denials may arise from insufficient documentation or lack of clarity regarding the diagnosis. Best practices include thorough documentation of symptoms, imaging results, and treatment plans to support the medical necessity of services rendered.

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 I63.432?

I63.432 specifically covers cerebral infarctions resulting from embolic events affecting the left posterior cerebral artery, often associated with conditions like atrial fibrillation or carotid artery disease.

When should I63.432 be used instead of related codes?

I63.432 should be used when the infarction is confirmed to be due to embolism affecting the left posterior cerebral artery, differentiating it from other infarctions that may involve different arteries or mechanisms.

What documentation supports I63.432?

Documentation should include clinical notes detailing the patient's symptoms, results from neuroimaging studies confirming the infarction, and any relevant history of embolic risk factors.