ICD10
ICD-10 Code I65.2: Occlusion and stenosis of carotid artery
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
When is it used?
- May be used when a clinician documents occlusion and stenosis of carotid artery in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
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.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I60-I69Cerebrovascular diseases
category
I65Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
currentI65
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
CardiologistGeneral Physician
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 431421000124103high
Arteriosclerosis of carotid artery
Source: SNOMED International ICD-10 map
SNOMED_CT 703180005high
Asymptomatic occlusion of extracranial carotid artery
Source: SNOMED International ICD-10 map
SNOMED_CT 703184001high
Asymptomatic occlusion of intracranial carotid artery
Source: SNOMED International ICD-10 map
SNOMED_CT 1204158003high
Asymptomatic stenosis of extracranial carotid artery
Source: SNOMED International ICD-10 map
SNOMED_CT 1204156004high
Asymptomatic stenosis of intracranial carotid artery
Source: SNOMED International ICD-10 map
SNOMED_CT 284871000119105high
Atherosclerosis of left carotid artery
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
I65.2
Replacement codes
I65.21 — Occlusion and stenosis of right carotid arteryI65.22 — Occlusion and stenosis of left carotid arteryI65.23 — Occlusion and stenosis of bilateral carotid arteriesI65.29 — Occlusion and stenosis of unspecified carotid artery
Common synonyms
Occlusion and stenosis of carotid artery
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.