ICD-10-CM code · FY2027
I65.29 Occlusion and stenosis of unspecified carotid artery
BillableValid for claims as a specific diagnosis code
About I65.29
- Code
- I65.29
- Billable
- Yes
- Short description
- Occlusion and stenosis of unspecified carotid artery
- Category
- I65 Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
- Block
- I60-I69 Cerebrovascular diseases
- Chapter
- 9 Diseases of the circulatory system
- Code set
- FY2027, October 1, 2026 to September 30, 2027
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Coding notes for I65.29
No notes of its own; the notes below apply from the codes above it.
Also applies, from I65 Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
Includes Conditions this code covers.
- embolism of precerebral artery
- narrowing of precerebral artery
- obstruction (complete) (partial) of precerebral artery
- thrombosis of precerebral artery
Excludes1 Not coded here: never report these together with this code (use the code given instead).
Block I60-I69 notes (apply to every code in it)
Excludes1 Not coded here: never report these together with this code (use the code given instead).
- traumatic intracranial hemorrhage (S06.-)
Use additional code Add a second code for the detail named here.
Chapter 9 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Related codes in I65.2
Latest research on carotid stenosis
- Carotid endarterectomy and medical therapy reveal similar effectiveness in asymptomatic carotid stenosis
- Quick Take: Risk Prediction Tools to Improve Patient Selection for Carotid Endarterectomy Among Patients With Asymptomatic Carotid Stenosis
- Cerebral embolic protection does not decrease stroke incidence in TAVI patients
- Microplastics and nanoplastics linked to higher risk of cardiovascular events
- Transcarotid artery revascularization not associated with a significant difference in 30-day risk of stroke, death and myocardial infarction compared to carotid endarterectomy
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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