| parent | Vitamin B12 | LP31689-0 |
| child | Aquacobalamin | LP15413-5 |
| child | Cobalamin | Blood | Chemistry - non-challenge | LP385131-0 |
| child | Cobalamin | Serum | Chemistry - non-challenge | LP385132-8 |
| child | Cobalamin | Serum or Plasma | Chemistry - non-challenge | LP385133-6 |
| child | Cobalamins.unsaturated binding capacity | LP15518-1 |
| child | Hydroxocobalamin | LP15647-8 |
| child | Cobalamin | Urine | Chemistry - non-challenge | LP385134-4 |
| child | Transcobalamin | LP15905-0 |
| parent | Vitamin B12 | LP31689-0 |
| child | Cobalamin | Urine | Chemistry - challenge | LP387169-8 |
| PartDisplayName | en-US | Cobalamins |
| DisplayName | en-US | Cobalamin |
LOINC Version: 2.77
FHIR