| Source Element | Usage | Target |
| Quantity.id | UseOneOfElements | Age.id,Count.id,Distance.id,Duration.id,Money.id,Quantity.id |
| Quantity.extension | UseOneOfElements | Age.extension,Count.extension,Distance.extension,Duration.extension,Money.extension,Quantity.extension |
| Quantity.value | UseOneOfElements | Age.value,Count.value,Distance.value,Duration.value,Money.value,Quantity.value |
| Quantity.comparator | UseOneOfElements | Age.comparator,Count.comparator,Distance.comparator,Duration.comparator,Quantity.comparator |
| Quantity.unit | UseOneOfElements | Age.unit,Count.unit,Distance.unit,Duration.unit,Money.currency,Quantity.unit |
| Quantity.system | UseOneOfElements | Age.system,Count.system,Distance.system,Duration.system,Quantity.system |
| Quantity.code | UseOneOfElements | Age.code,Count.code,Distance.code,Duration.code,Money.currency,Quantity.code |