Table
| Extension | 0..* | |
| Extension.id | string | 0..1 |
| Extension.extension | Extension | 0..* |
| Extension.url | uri | 1..1 |
| Extension.value[x]:valueCodeableConcept | CodeableConcept | 0..1 |
| Extension.value[x]:valueCodeableConcept.id | string | 0..1 |
| Extension.value[x]:valueCodeableConcept.extension | Extension | 0..* |
| Extension.value[x]:valueCodeableConcept.coding | Coding | 0..* |
| Extension.value[x]:valueCodeableConcept.text | string | 0..1 |