Transient cerebral ischemic attacks and related syndromes (G45)

• ICD-10 Index

  • Diseases of the nervous system (G00–G99)

    • Episodic and paroxysmal disorders (G40-G47)

      • Transient cerebral ischemic attacks and related syndromes (G45)

        • G45 - Transient cerebral ischemic attacks and related syndromes NON-BILLABLE CODE
        • G45.0 - Vertebro-basilar artery syndrome BILLABLE CODE
        • G45.1 - Carotid artery syndrome (hemispheric) BILLABLE CODE
        • G45.2 - Multiple and bilateral precerebral artery syndromes BILLABLE CODE
        • G45.3 - Amaurosis fugax BILLABLE CODE
        • G45.4 - Transient global amnesia BILLABLE CODE
        • G45.8 - Oth transient cerebral ischemic attacks and related synd BILLABLE CODE
        • G45.9 - Transient cerebral ischemic attack, unspecified BILLABLE CODE

Clinical Information for Transient cerebral ischemic attacks and related syndromes (G45)

Amaurosis Fugax - Transient complete or partial monocular blindness due to retinal ischemia. This may be caused by emboli from the CAROTID ARTERY (usually in association with CAROTID STENOSIS) and other locations that enter the central RETINAL ARTERY. (From Adams et al., Principles of Neurology, 6th ed, p245)

Subclavian Steal Syndrome - A clinically significant reduction in blood supply to the BRAIN STEM and CEREBELLUM (i.e., VERTEBROBASILAR INSUFFICIENCY) resulting from reversal of blood flow through the VERTEBRAL ARTERY from occlusion or stenosis of the proximal subclavian or brachiocephalic artery. Common symptoms include VERTIGO; SYNCOPE; and INTERMITTENT CLAUDICATION of the involved upper extremity. Subclavian steal may also occur in asymptomatic individuals. (From J Cardiovasc Surg 1994;35(1):11-4; Acta Neurol Scand 1994;90(3):174-8)

Instructional Notations

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• neonatal cerebral ischemia P91.0
• transient retinal artery occlusion H34.0