| parent | Liver function | LP31397-0 |
| child | Ammonia nitrogen | LP15381-4 |
| child | Ammonia | Blood | Chemistry - non-challenge | LP385226-8 |
| child | Ammonia | Blood arterial | Chemistry - non-challenge | LP412010-3 |
| child | Ammonium | LP15382-2 |
| child | Ammonium ion | LP28994-9 |
| child | Ammonia | Body fluid | Chemistry - non-challenge | LP385227-6 |
| child | Ammonia | Cerebral spinal fluid | Chemistry - non-challenge | LP385228-4 |
| child | Ammonia/Creatinine | LP284967-9 |
| child | Ammonia | Dialysis fluid | Chemistry - non-challenge | LP385229-2 |
| child | Ammonia | Ingesta | Chemistry - non-challenge | LP385230-0 |
| child | Ammonia | Plasma | Chemistry - non-challenge | LP385231-8 |
| child | Ammonia | Serum | Chemistry - non-challenge | LP385232-6 |
| child | Ammonia | Stool | Chemistry - non-challenge | LP427053-6 |
| child | Ammonia | Tissue and Smears | Chemistry - non-challenge | LP385233-4 |
| child | Ammonia | Urine | Chemistry - non-challenge | LP385234-2 |
| child | Ammonia | Water | Chemistry - non-challenge | LP385235-9 |
| child | Ammonia | XXX | Chemistry - non-challenge | LP385236-7 |
| parent | Volatiles | LP18221-9 |
| child | Ammonia | Air | Drug toxicology | LP387775-2 |
| PartDisplayName | en-US | Ammonia |
| DisplayName | en-US | Ammonia |
LOINC Version: 2.77
FHIR