| parent | Urea nitrogen | LP14492-0 |
| child | Urea nitrogen [Mass/time] in 12 hour Urine | 24465-7 |
| child | Urea nitrogen [Mass/volume] in 24 hour Urine | 12967-6 |
| child | Urea nitrogen [Mass/time] in 24 hour Urine | 3096-5 |
| child | Urea nitrogen [Moles/volume] in 24 hour Urine | 33355-9 |
| child | Urea nitrogen [Moles/time] in 24 hour Urine | 14939-3 |
| child | Urea nitrogen [Mass/volume] in Urine | 3095-7 |
| child | Urea nitrogen [Mass or Moles/volume] in Urine | 35235-1 |
| child | Urea nitrogen [Moles/volume] in Urine | 14938-5 |
| child | Urea nitrogen/Body weight [Mass/kg/time] in 24 hour Urine | 35657-6 |
| child | Urea nitrogen/Creatinine [Mass Ratio] in 24 hour Urine | 13821-4 |
| child | Urea nitrogen/Creatinine [Mass Ratio] in Urine | 44416-6 |
| PartDisplayName | en-US | Urea nitrogen | Urine | Chemistry - non-challenge |
LOINC Version: 2.77
FHIR