| parent | Gamma aminobutyrate | LP15588-4 | 
| child | Gamma aminobutyrate [Mass/time] in 24 hour Urine | 6882-5 | 
| child | Gamma aminobutyrate [Presence] in 24 hour Urine | 26804-5 | 
| child | Gamma aminobutyrate [Moles/volume] in 24 hour Urine | 25914-3 | 
| child | Gamma aminobutyrate [Moles/time] in 24 hour Urine | 25427-6 | 
| child | Gamma aminobutyrate [Mass/volume] in Urine | 2319-2 | 
| child | Deprecated Gamma aminobutyrate [Mass/volume] in Urine | 16883-1 | 
| child | Gamma aminobutyrate [Presence] in Urine | 16882-3 | 
| child | Gamma aminobutyrate [Moles/volume] in Urine | 27911-7 | 
| child | Gamma aminobutyrate/Creatinine [Ratio] in 24 hour Urine | 56679-4 | 
| child | Gamma aminobutyrate/Creatinine [Molar ratio] in 24 hour Urine | 25915-0 | 
| child | Gamma aminobutyrate/Creatinine [Mass Ratio] in Urine | 13695-2 | 
| child | Gamma aminobutyrate/Creatinine [Ratio] in Urine | 28593-2 | 
| child | Gamma aminobutyrate/Creatinine [Molar ratio] in Urine | 26581-9 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Gamma aminobutyrate | Urine | Chemistry - non-challenge | 
LOINC Version: 2.81