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ICD-10-CM Codes Browse (Tabular) Diagnostic External Drug Neoplasm

I66.9 – Occlusion and stenosis of unspecified cerebral artery

Overview

Coding Notes

Active
Billable, valid for HIPAA-covered transactions

GEM Conversion to ICD-9 CM

Fs: 10000 – Cerebral embolism without mention of cerebral infarction
Fs: 10000 – Cerebral artery occlusion, unspecified without mention of cerebral infarction

MDC / MS-DRG Reference

ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITH MCC
ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITH CC
ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITHOUT CC/MCC
NONSPECIFIC CVA AND PRECEREBRAL OCCLUSION WITHOUT INFARCTION WITH MCC
NONSPECIFIC CVA AND PRECEREBRAL OCCLUSION WITHOUT INFARCTION WITHOUT MCC
FULL TERM NEONATE WITH MAJOR PROBLEMS

Back Reference of Diagnostic Codes

Occlusion, occluded
artery See also Atherosclerosis, artery I70.9
brain or cerebral I66.9
cerebral I66.9
Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) I82.90
cortical I66.9
intracranial (arterial) I66.9

Sibling Codes

Occlusion and stenosis of middle cerebral artery
Occlusion and stenosis of anterior cerebral artery
Occlusion and stenosis of posterior cerebral artery
Occlusion and stenosis of cerebellar arteries
Occlusion and stenosis of other cerebral arteries

Parent Sibling Codes

Nontraumatic subarachnoid hemorrhage
Nontraumatic intracerebral hemorrhage
Other and unspecified nontraumatic intracranial hemorrhage
Cerebral infarction
Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
Other cerebrovascular diseases
Cerebrovascular disorders in diseases classified elsewhere
Sequelae of cerebrovascular disease

View in Tabular

Code Title
I00-I99 Diseases of the circulatory system (I00-I99)
I60-I69 Cerebrovascular diseases (I60-I69)
I66 Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
I66.9 Occlusion and stenosis of unspecified cerebral artery