| parent | Small molecules | LP31415-0 |
| child | Homocystine.free | LP31715-3 |
| child | Homocystine | Amniotic fluid | Chemistry - non-challenge | LP386303-4 |
| child | Homocystine | DBS | Chemistry - non-challenge | LP386304-2 |
| child | Homocystine/Creatinine | LP286227-6 |
| child | Homocystine | Body fluid | Chemistry - non-challenge | LP386305-9 |
| child | Homocystine | Cerebral spinal fluid | Chemistry - non-challenge | LP386306-7 |
| child | Homocystine | Serum or Plasma | Chemistry - non-challenge | LP386307-5 |
| child | Homocystine | Urine | Chemistry - non-challenge | LP386308-3 |
| child | Homocystine | XXX | Chemistry - non-challenge | LP386309-1 |
| parent | Small molecules | LP31415-0 |
| child | Homocystine | Serum or Plasma | Chemistry - challenge | LP387212-6 |
| PartDisplayName | en-US | Homocystine |
| DisplayName | en-US | Homocystine |
LOINC Version: 2.77
FHIR