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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Cerebrovascular Disease 430-438 > Other And Ill-Defined Cerebrovascular Disease 437.* > 2008 ICD-9-CM Diagnosis 437.9 Unspecified cerebrovascular disease  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 437.9 can be accessed here. A broad category of disorders characterized by impairment of blood flow in the arteries and veins which supply the brain. These include CEREBRAL INFARCTION; BRAIN ISCHEMIA; HYPOXIA, BRAIN; INTRACRANIAL EMBOLISM AND THROMBOSIS; INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; and VASCULITIS, CENTRAL NERVOUS SYSTEM. In common usage, the term cerebrovascular disorders is not limited to conditions that affect the cerebrum, but refers to vascular disorders of the entire brain including the DIENCEPHALON; BRAIN STEM; and CEREBELLUM. 437.9 is a specific code that can be used to specify a diagnosis 437.9 contains 14 index entries View the ICD-9-CM Volume 1 437.* hierarchy 437.9 also known as: Cerebrovascular disease or lesion NOS Index entries containing 437.9: Disease, diseased - see also Syndrome artery 447.9 cerebral 437.9 brain 348.9 arterial, artery 437.9 cerebral (see also Disease, brain) 348.9 arterial, artery 437.9 cerebrovascular NEC 437.9 acute 436 embolic - see Embolism, brain late effect - see Late effect(s) (of) cerebrovascular disease puerperal, postpartum, childbirth 674.0 thrombotic - see Thrombosis, brain arteriosclerotic 437.0 embolic - see Embolism, brain ischemic, generalized NEC 437.1 late effect - see Late effect(s) (of) cerebrovascular disease occlusive 437.1 puerperal, postpartum, childbirth 674.0 specified type NEC 437.8 thrombotic - see Thrombosis, brain sinus - see also Sinusitis brain 437.9 Insufficiency, insufficient cerebral (vascular) 437.9 cerebrovascular 437.9 with transient focal neurological signs and symptoms 435.9 acute 437.1 with transient focal neurological signs and symptoms 435.9 Insult brain 437.9 acute 436 cerebral 437.9 acute 436 cerebrovascular 437.9 acute 436 vascular NEC 437.9 acute 436 Lesion(s) brain 348.8 vascular (see also Lesion, cerebrovascular) 437.9 degenerative 437.1 healed or old without residuals V12.54 hypertensive 437.2 late effect - see Late effect(s) (of) cerebrovascular disease cerebrovascular (see also Disease, cerebrovascular NEC) 437.9 degenerative 437.1 healed or old without residuals V12.54 hypertensive 437.2 specified type NEC 437.8 vascular 459.9 affecting central nervous system (see also Lesion, cerebrovascular) 437.9