Valid for Submission
G45.1 is a billable diagnosis code used to specify a medical diagnosis of carotid artery syndrome (hemispheric). The code G45.1 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G45.1 might also be used to specify conditions or terms like acute cerebral ischemia, acute cerebrovascular insufficiency, carotid artery insufficiency syndrome, carotid artery syndrome hemispheric or carotid territory transient ischemic attack.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G45.1 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acute cerebral ischemia
- Acute cerebrovascular insufficiency
- Carotid artery insufficiency syndrome
- Carotid artery syndrome hemispheric
- Carotid territory transient ischemic attack
Convert G45.1 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G45.1 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Transient Ischemic Attack
Also called: Mini-stroke, TIA
A transient ischemic attack (TIA) is a stroke that 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
- 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)