label: CT or MRI of the brain performed greater than 24 hours after arrival to the hospital or performed in an outpatient imaging center for purpose other than confirmation of initial diagnosis of stroke, TIA, or intracranial hemorrhage (STR)
label_lc: ct or mri of the brain performed greater than 24 hours after arrival to the hospital or performed in an outpatient imaging center for purpose other than confirmation of initial diagnosis of stroke, tia, or intracranial hemorrhage (str)