| parent | Small molecules | LP31415-0 | 
| child | N-methylhistamine/Creatinine | LP286666-5 | 
| child | N-methylhistamine | Urine | Chemistry - non-challenge | LP386322-4 | 
| STATUS | ACTIVE | 
| PartDisplayName | en-US | N-methylhistamine | 
| DisplayName | en-US | N-methylhistamine | 
LOINC Version: 2.81