I65 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction.
Includes
Embolism of precerebral artery
Narrowing of precerebral artery
Obstruction (complete) (partial) of precerebral artery
Thrombosis of precerebral artery
Type 1 excludes
Insufficiency, NOS, of precerebral artery (G45.-)
Insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)
Codes
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code