| parent | Barbiturates | LP14546-3 |
| child | PHENobarbital.free | LP29096-2 |
| child | PHENobarbital | Blood | Drug toxicology | LP390721-1 |
| child | PHENobarbital | Body fluid | Drug toxicology | LP390722-9 |
| child | PHENobarbital cutoff | LP229271-4 |
| child | PHENobarbital/Creatinine | LP286794-5 |
| child | PHENobarbital | Gastric fluid | Drug toxicology | LP390723-7 |
| child | PHENobarbital | Hair | Drug toxicology | LP390724-5 |
| child | PHENobarbital | Meconium | Drug toxicology | LP390725-2 |
| child | PHENobarbital | Milk | Drug toxicology | LP390726-0 |
| child | PHENobarbital | Saliva | Drug toxicology | LP390727-8 |
| child | PHENobarbital | Serum or Plasma | Drug toxicology | LP390728-6 |
| child | PHENobarbital | Serum, Plasma or Blood | Drug toxicology | LP390729-4 |
| child | PHENobarbital | Stool | Drug toxicology | LP390730-2 |
| child | PHENobarbital | Umbilical cord tissue | Drug toxicology | LP426641-9 |
| child | PHENobarbital | Urine | Drug toxicology | LP390731-0 |
| child | PHENobarbital | Vitreous fluid | Drug toxicology | LP390732-8 |
| child | PHENobarbital | XXX | Drug toxicology | LP390733-6 |
| parent | Barbiturates | LP14546-3 |
| child | PHENobarbital | Dose | Drug doses | LP392339-0 |
| PartDisplayName | en-US | PHENobarbital |
| DisplayName | en-US | PHENobarbital |
LOINC Version: 2.77
FHIR