Medication allergies - RxNorm code:Hx:Pt:^Patient:Nom:NEMSIS
medication allergies - rxnorm code:hx:pt:^patient:nom:nemsis
Medication allergies - RxNorm code:History:To identify measures at a point in time:^Patient:Nominal:NEMSIS
medication allergies - rxnorm code:history:to identify measures at a point in time:^patient:nominal:nemsis