ICD-10 Diagnosis Code G45

Transient cerebral ischemic attacks and related syndromes

Diagnosis Code G45

ICD-10: G45
Short Description: Transient cerebral ischemic attacks and related syndromes
Long Description: Transient cerebral ischemic attacks and related syndromes
This is the 2018 version of the ICD-10-CM diagnosis code G45

Not Valid for Submission
The code G45 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the nervous system (G00–G99)
    • Episodic and paroxysmal disorders (G40-G47)
      • Transient cerebral ischemic attacks and related syndromes (G45)

Information for Medical Professionals

Information for Patients


Transient Ischemic Attack

Also called: Mini-stroke, TIA

A transient ischemic attack (TIA) is a stroke lasts only a few minutes. It happens when the blood supply to part of the brain is briefly blocked. Symptoms of a TIA are like other stroke symptoms, but do not last as long. They happen suddenly, and include

  • Numbness or weakness, especially on one side of the body
  • Confusion or trouble speaking or understanding speech
  • Trouble seeing in one or both eyes
  • Difficulty walking
  • Dizziness
  • Loss of balance or coordination

Most symptoms of a TIA disappear within an hour, although they may last for up to 24 hours. Because you cannot tell if these symptoms are from a TIA or a stroke, you should go to the hospital right away.

TIAs are often a warning sign for future strokes. Taking medicine, such as blood thinners, may reduce your risk of a stroke. Your doctor might also recommend surgery. You can also help lower your risk by having a healthy lifestyle. This includes not smoking, not drinking too much, eating a healthy diet, and exercising. It is also important to control other health problems, such as high blood pressure and cholesterol.

NIH: National Institute of Neurological Disorders and Stroke

  • Transient ischemic attack (Medical Encyclopedia)
  • Vertebrobasilar circulatory disorders (Medical Encyclopedia)


[Read More]
Previous Code
Previous Code G44.89
Next Code
G45.0 Next Code