ICD-10-CM code · FY2027
I65 Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
Header codeNot billable: use one of the 11 billable codes below
About I65
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Coding notes for I65
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.-)
Codes under I65 13
- I65.0 Occlusion and stenosis of vertebral arteryHeader
- I65.01 Occlusion and stenosis of right vertebral arteryBillable
- I65.02 Occlusion and stenosis of left vertebral arteryBillable
- I65.03 Occlusion and stenosis of bilateral vertebral arteriesBillable
- I65.09 Occlusion and stenosis of unspecified vertebral arteryBillable
- I65.1 Occlusion and stenosis of basilar arteryBillable
- I65.2 Occlusion and stenosis of carotid arteryHeader
- I65.21 Occlusion and stenosis of right carotid arteryBillable
- I65.22 Occlusion and stenosis of left carotid arteryBillable
- I65.23 Occlusion and stenosis of bilateral carotid arteriesBillable
- I65.29 Occlusion and stenosis of unspecified carotid arteryBillable
- I65.8 Occlusion and stenosis of other precerebral arteriesBillable
- I65.9 Occlusion and stenosis of unspecified precerebral arteryBillable
Other categories in I60-I69
- I60 Nontraumatic subarachnoid hemorrhageHeader
- I61 Nontraumatic intracerebral hemorrhageHeader
- I62 Other and unspecified nontraumatic intracranial hemorrhageHeader
- I63 Cerebral infarctionHeader
- I66 Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarctionHeader
- I67 Other cerebrovascular diseasesHeader
- I68 Cerebrovascular disorders in diseases classified elsewhereHeader
- I69 Sequelae of cerebrovascular diseaseHeader
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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