Classification | Code | Definition |
---|---|---|
Inclusion Criteria | ||
ICD9-CM Diagnosis Codes | 433.11 | Occlusion & stenosis of the carotid artery, with infarction |
 | 434.01 | Cerebral thrombosis, with infarction |
 | 434.11 | Cerebral embolism, with infarction |
 | 434.91 | Cerebral artery occlusion, unspecified, with infarction |
ICD9-CM Procedure Codes | 01.24 | Craniotomy |
 | 01.25 | Craniectomy |
 | 01.39 | Other incision of brain |
 | 01.53 | Lobectomy of brain |
 | 01.59 | Other excision of lesion or tissue of the brain |
Exclusion Criteria | ||
ICD9-CM Diagnosis Codes | 191.x | Malignant neoplasm of the brain |
 | 198.3 | Secondary malignant neoplasm of the brain and spinal cord |
 | 324.0 | Intracranial abscess |
 | 430 | Subarachnoid hemorrhage |
 | 433.01 | Occlusion & stenosis of the basilar artery, with infarction |
 | 433.21 | Occlusion & stenosis of the vertebral artery, with infarction |
 | 437.3 | Cerebral aneurysm, unruptured |
 | 437.5 | Moyamoya disease |
 | 437.6 | Intracranial venous sinus thrombosis |
 | 443.24 | Dissection of the vertebral artery |
 | 747.81 | Congenital anomalies of the cerebrovascular system |
 | 800.xx | Fracture of the vault of the skull |
 | 801.xx | Fracture of the base of the skull |
 | 851.xx | Traumatic cerebral contusion |
 | 852.xx | Traumatic subarachnoid, subdural, or extradural hemorrhage |
 | 853.xx | Other and unspecified intracranial hemorrhage after injury |
 | 854.xx | Intracranial injury of other and unspecified nature |
ICD9-CM Procedure Codes | 03.09 | Laminectomy |