| parent | Barbiturates | LP14546-3 |
| child | Barbital cutoff | LP227739-2 |
| child | Barbital | Blood | Drug toxicology | LP390659-3 |
| child | Barbital | Body fluid | Drug toxicology | LP390660-1 |
| child | Barbital | Gastric fluid | Drug toxicology | LP390661-9 |
| child | Barbital | Hair | Drug toxicology | LP390662-7 |
| child | Barbital | Serum or Plasma | Drug toxicology | LP390663-5 |
| child | Barbital | Stool | Drug toxicology | LP390664-3 |
| child | Barbital | Urine | Drug toxicology | LP390665-0 |
| child | Barbital | XXX | Drug toxicology | LP390666-8 |
| parent | Barbiturates | LP14546-3 |
| child | Barbital | Dose | Drug doses | LP392333-3 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Barbital |
| DisplayName | en-US | Barbital |
LOINC Version: 2.81