ICD-9 Code 433.20

Occlusion and stenosis of vertebral artery without mention of cerebral infarction

Not Valid for Submission

433.20 is a legacy non-billable code used to specify a medical diagnosis of occlusion and stenosis of vertebral artery without mention of cerebral infarction. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 433.20
Short Description:Ocl vrtb art wo infrct
Long Description:Occlusion and stenosis of vertebral artery without mention of cerebral infarction

Convert 433.20 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • I65.09 - Occlusion and stenosis of unspecified vertebral artery

Code Classification

  • Diseases of the circulatory system (390–459)
    • Cerebrovascular disease (430-438)
      • 433 Occlusion and stenosis of precerebral arteries

Information for Medical Professionals

Synonyms

  • Vertebral artery embolism
  • Vertebral artery obstruction
  • Vertebral artery occlusion
  • Vertebral artery stenosis
  • Vertebral artery thrombosis

Information for Patients


Brain Diseases

The brain is the control center of the body. It controls thoughts, memory, speech, and movement. It regulates the function of many organs. When the brain is healthy, it works quickly and automatically. However, when problems occur, the results can be devastating.

Inflammation in the brain can lead to problems such as vision loss, weakness and paralysis. Loss of brain cells, which happens if you suffer a stroke, can affect your ability to think clearly. Brain tumors can also press on nerves and affect brain function. Some brain diseases are genetic. And we do not know what causes some brain diseases, such as Alzheimer's disease.

The symptoms of brain diseases vary widely depending on the specific problem. In some cases, damage is permanent. In other cases, treatments such as surgery, medicines, or physical therapy can correct the source of the problem or improve symptoms.

  • Basal ganglia dysfunction
  • Brain abscess
  • Brain surgery
  • Brain surgery - discharge
  • Central pontine myelinolysis
  • Cerebral spinal fluid (CSF) collection
  • EEG
  • Hepatic encephalopathy
  • Hepatocerebral degeneration
  • Increased intracranial pressure
  • Intraventricular hemorrhage of the newborn
  • Pseudotumor cerebri
  • Subdural hematoma
  • Wernicke-Korsakoff syndrome

[Read More]

Vascular Diseases

The vascular system is the body's network of blood vessels. It includes the arteries, veins and capillaries that carry blood to and from the heart. Problems of the vascular system are common and can be serious. Arteries can become thick and stiff, a problem called atherosclerosis. Blood clots can clog vessels and block blood flow to the heart or brain. Weakened blood vessels can burst, causing bleeding inside the body.

You are more likely to have vascular disease as you get older. Other factors that make vascular disease more likely include

  • Family history of vascular or heart diseases
  • Pregnancy
  • Illness or injury
  • Long periods of sitting or standing still
  • Any condition that affects the heart and blood vessels, such as diabetes or high cholesterol
  • Smoking
  • Obesity

Losing weight, eating healthy foods, being active and not smoking can help vascular disease. Other treatments include medicines and surgery.

  • Aortic arch syndrome
  • Arterial embolism
  • Arteriogram
  • Cerebral angiography
  • Distal splenorenal shunt
  • Duplex ultrasound
  • Hereditary angioedema
  • Magnetic resonance angiography
  • Mesenteric angiography
  • Mesenteric artery ischemia
  • SVC obstruction
  • Venous insufficiency
  • Venous ulcers -- self-care
  • Volkmann ischemic contracture

[Read More]

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.