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ICD-10-CM Code I66.11
Occlusion and stenosis of right anterior cerebral artery

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Adult Only
Adult Only
Code is only used for patients 15 years old or older.
| ICD-10 from 2011 - 2016

I66.11 is a billable ICD code used to specify a diagnosis of occlusion and stenosis of right anterior cerebral artery. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code I66 is used to code Cerebrovascular disease

Cerebrovascular disease, stroke or cerebrovascular accident, is a vascular disease of the cerebral circulation. Arteries supplying oxygen to the brain are affected resulting in one of a number of cerebrovascular diseases. Most commonly this is a stroke or mini-stroke and sometimes can be a hemorrhagic stroke. Any of these can result in vascular dementia.

Cerebral angiogram of a carotid-cavernous fistula

Source: Wikipedia

MS-DRG Mapping

  • DRG Group #067-068 - Nonspecific cva and precerebral occlusion without infarct with MCC.
  • DRG Group #067-068 - Nonspecific cva and precerebral occlusion without infarct without MCC.
  • DRG Group #793 - Full term neonate with major problems.

Equivalent ICD-9 Codes GENERAL EQUIVALENCE MAPPINGS (GEM)

Cerebral thrombosis without mention of cerebral infarction (approximate match)
Cerebral embolism without mention of cerebral infarction (approximate match)
Cerebral artery occlusion, unspecified without mention of cerebral infarction (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code I66.11 and a single ICD9 code, 434.90 is an approximate match for comparison and conversion purposes.


Parent Code: I66.1 - Occlusion and stenosis of anterior cerebral artery

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/I6611