| # | Name | Source | Ver | Description | |
| 1 | Aditional Information | hl7.fhir.us.pq-cmc#current | R5 | Any additional information | |
| 2 | DataSetDefinitionExtension - IEHR | fhir.uv.researchdatasharing#current | R4 | ||
| 3 | EnrollmentPeriodExtensionIEHR | fhir.uv.researchdatasharing#current | R4 | ||
| 4 | Extension - Container Orientation dx-PQ | hl7.fhir.uv.dx-pq#current | R5 | ||
| 5 | Extension - Statistical Model dx-PQ | hl7.fhir.uv.dx-pq#current | R5 | ||
| 6 | QuestionnaireExtension - IEHR | fhir.uv.researchdatasharing#current | R4 | ||
| 7 | ResearchStudy Site Recruitment | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Target and actual numbers of sites for a study. | |
| 8 | ResearchStudy Study Registration | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Dates for study registration activities. | |
| 9 | Study Protocol | hl7.fhir.us.pq-cmc#current | R5 | Study protocol identification |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| Extension | D | C D | C D | C D | D | ||||
| Extension.extension | C | S C (2) | S C D (4) | S C D (3) | S C D (3) | S C (3) | |||
| Extension.extension.extension | C (3) | C (3) | C (2) | ||||||
| Extension.extension.value[x] | C | C (3) | C (3) | C B M (3) | S C D (4) | ||||
| Extension.extension.url | F | F (3) | F (3) | F (3) | F (2) | ||||
| Extension.url | F | F | F | F | F | F | F | F | |
| Extension.value[x] | C | C | C | C | C |
Produced 08 Sep 2023