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I66.09 - Occlusion and stenosis of unspecified middle cerebral artery


The ICD 10 Code for Occlusion and stenosis of unspecified middle cerebral artery is listed as I66.09.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: I66.09
Description: Occlusion and stenosis of unspecified middle cerebral artery
Diagnostic Related Groups
(MS-DRG v30.0)
067 - Nonspecific Cva & Precerebral Occlusion W/o Infarct W Mcc
068 - Nonspecific Cva & Precerebral Occlusion W/o Infarct W/o Mcc
793 - Full Term Neonate W Major Problems
Chapter Diseases of the circulatory system (I00-I99)
Block Cerebrovascular diseases (I60-I69)
Parent I66.0 - Occlusion and stenosis of middle cerebral artery
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 434.00 - Cerebral thrombosis without mention of cerebral infarction (approximate)
ICD 9 Dx Code: 434.10 - Cerebral embolism without mention of cerebral infarction (approximate)
ICD 9 Dx Code: 434.90 - Cerebral artery occlusion, unspecified without mention of cerebral infarction (approximate)
ICD-10-CM Siblings (same level / similar specificity) of I66.09:
I66.01 - Occlusion and stenosis of right middle cerebral artery
I66.02 - Occlusion and stenosis of left middle cerebral artery
I66.03 - Occlusion and stenosis of bilateral middle cerebral arteries