[retMD]

Here's a few more for you:
System for nursing assessment. Note about 1/5 of the way down on the right, the form has "Alert & oriented to person, place and time."

Here's another form: Adult Nursing Assessment. Note under "psycho social" a check off for "Disorientation time/place/person."

This one is a sample page under "neurologic assessment" in a book called "Nursing Assessment and Diagnosis." You may have to scroll down a little, to where it says "Level of consciousness is assessed several ways. This is done by checking a client's orientation to person, place and time..."

Talk to any nurse, doctor, paramedic or EMT. This is standard stuff, used all over the country, (and Canada, and probably most other countries as well.) It is basic patient assessment. Most medical facilties that have an admitting form will have a place for orientation. Ambulance forms have a place for orientation.

[T'wit]

You are arguing there is uniform usage throughout the medical profession, but can barely come up with two sources with identical definitions of the term. Language is far too subtle and nuanced for your conclusions, far too dynamic, far too contextual, far too idiosyncratic. You will never find robotic conformity to a speech code in any profession or community.