Specific code 2014 ICD-9-CM Diagnosis Code 437.9
Unspecified cerebrovascular disease
  • Billable Code
  • Short description: Cerebrovasc disease NOS.
  • ICD-9-CM 437.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 437.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Cerebrovascular disease
Clinical Information
  • A disorder resulting from inadequate blood flow in the vessels that supply the brain. Representative examples include cerebrovascular ischemia, cerebral embolism, and cerebral infarction.
  • A spectrum of pathological conditions of impaired blood flow in the brain. They can involve vessels (arteries; or veins) in the cerebrum, the cerebellum, and the brain stem. Major categories include intracranial arteriovenous malformations; brain ischemia; cerebral hemorrhage; and others.
  • Broad category of disorders of blood flow in the arteries and veins which supply the brain; includes cerebral infarction, brain ischemia, brain hypoxia, intracranial embolism and thrombosis, intracranial arteriovenous malformations, etc; not limited to conditions that affect the cerebrum, but refers to vascular disorders of the entire brain.
Applies To
  • Cerebrovascular disease or lesion NOS
Convert to ICD-10-CM: 437.9 converts directly to:
  • 2014 ICD-10-CM I67.9 Cerebrovascular disease, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 437.9:
  • Disease, diseased - see also Syndrome
    • artery 447.9
      • cerebral 437.9
      • coronary - see Arteriosclerosis, coronary
      • specified type NEC 447.8
    • brain 348.9
      • Alzheimer's 331.0
        • with dementia - see Alzheimer's, dementia
      • arterial, artery 437.9
      • arteriosclerotic 437.0
      • congenital 742.9
      • degenerative - see Degeneration, brain
      • inflammatory - see also Encephalitis
        • late effect - see category 326
      • organic 348.9
      • parasitic NEC 123.9
      • Pick's 331.11
      • senile 331.2
    • cerebral (see also Disease, brain) 348.9
      • arterial, artery 437.9
      • degenerative - see Degeneration, brain
    • 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
      • specified NEC 478.19
  • 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
    • cerebral 437.9
    • cerebrovascular 437.9
    • vascular NEC 437.9
  • Lesion(s)
    • brain 348.89
      • congenital 742.9
      • 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
    • vascular 459.9
      • affecting central nervous system (see also Lesion, cerebrovascular) 437.9
      • following trauma (see also Injury, blood vessel, by site) 904.9
      • retina 362.17
      • traumatic - see Injury, blood vessel, by site
      • umbilical cord 663.6
        • affecting fetus or newborn 762.6
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 437.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.