| parent | CHAL | LP7784-4 |
| child | Methane/Expired gas | LP286511-3 |
| parent | Miscellaneous toxic small organic and inorganic molecules | LP31433-3 |
| child | Methane | Blood | Drug toxicology | LP387486-6 |
| child | Methane | Exhaled gas | Drug toxicology | LP387487-4 |
| PartDisplayName | en-US | Methane |
| DisplayName | en-US | Methane |
LOINC Version: 2.77
FHIR