soprano
Guru
Can anyone please help me with an ICD 9 code for this? TIA 
TIA - Visual TIA- Is this the diagnosis you are looking for?
The most common abbreviation that fits for TIA is Transient Ischemic Attack with the code 435.9, I know of.
BUT,
In Opthalmic department the doctors use TIA for visual TIA, meaning a visual transient ischemic attack (TIA) which goes with the diagnosis code : Transient Visual Loss 368.12
Does this answer your scenario? please check. If not place a request with your doctor please.
thank you