I653-char group
Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Incl.: embolism of basilar, carotid or vertebral arteries, not resulting in cerebral infarction narrowing of basilar, carotid or vertebral arteries, not resulting in cerebral infarction obstruction (complete)(partial) of basilar, carotid or vertebral arteries, not resulting in cerebral infarction thrombosis of basilar, carotid or vertebral arteries, not resulting in cerebral infarction Excl.: when causing cerebral infarction (I63.-)
Codes within I65
I65.0Occlusion and stenosis of vertebral arteryI65.1Occlusion and stenosis of basilar arteryI65.2Occlusion and stenosis of carotid arteryI65.3Occlusion and stenosis of multiple and bilateral precerebral arteriesI65.8Occlusion and stenosis of other precerebral arteryI65.9Occlusion and stenosis of unspecified precerebral artery