ICD-10 Code I63.81: Other cerebral infarction due to occlusion or stenosis of small artery
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes another specified cerebral-infarction pattern that does not fit the named major-vessel thrombosis, embolic, venous-thrombosis, or unspecified branches. The most accurate code depends on whether the record clarifies a more specific mechanism or vessel pattern.
When is it used?
- May be used when a clinician documents other cerebral infarction due to occlusion or stenosis of small artery in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
đź©şClinical context
- Stroke, neurology, inpatient, and utilization-review documentation where ischemic stroke is documented but does not fit the more common named-vessel families.
- Coding workflows where the chart identifies another specified cerebral-infarction pattern such as small-artery occlusion or stenosis.
- Evaluation often includes neurologic examination, brain and vascular imaging review, acute-stroke assessment context, and follow-up of ischemic deficits or stroke-risk factors.
- Documentation usually becomes more specific when the chart names a particular small-vessel mechanism or clarifies another more specific arterial pattern.
- Specialist context already linked on this page includes Cardiologist, General Physician, Neurologist, Stroke Specialist.
🔍Key distinctions
- This ICD-10 family captures residual specified cerebral-infarction patterns that do not fit the main thrombosis, embolic, venous-thrombosis, or unspecified branches.
- Small-artery occlusion or stenosis is separated here from the larger named precerebral and cerebral artery families.
- This title isolates small-artery occlusion or stenosis as the documented mechanism, which is coded separately from the larger named precerebral and cerebral artery branches.
Code hierarchy
Official coding notes
- Lacunar infarction
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Related codes
Sibling codes
Coverage-related procedures and services
Coding guidelines
Common synonyms
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.