FHIR Extensions Pack
5.3.0-ballot-tc1 - (September 2025 Ballot) International flag

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.3.0-ballot-tc1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: ResearchStudy Investigator Recruitment

Official URL: http://hl7.org/fhir/StructureDefinition/researchStudy-investigatorRecruitment Version: 5.3.0-ballot-tc1
Standards status: Trial-use Maturity Level: 2 Responsible: HL7 International / Biomedical Research and Regulation Computable Name: RSInvestigatorRecruitment
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1098

Target and actual numbers of investigators for a study.

Context of Use

This extension may be used on the following element(s)

Usage info

Usages:

  • This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Changes since version 5.2.0:

  • New Content

    • Formal Views of Extension Content

    Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

    This structure is derived from Extension

    Summary

    Complex Extension: Target and actual numbers of investigators for a study.

    • targetNumber: unsignedInt: The desired number of investigators.
    • actualNumber: unsignedInt: The actual number of investigators.
    • description: markdown: A human readable description.
    • eligibilityCriteria: Reference: Criteria for inclusion or exclusion of investigators.

    Maturity: 2

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Target and actual numbers of investigators for a study
    ... Slices for extension Content/Rules for all slices
    .... extension:targetNumber 0..1 Extension The desired number of investigators
    ..... extension 0..0 Extension
    ..... url 1..1 uri "targetNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:actualNumber 0..1 Extension The actual number of investigators
    ..... extension 0..0 Extension
    ..... url 1..1 uri "actualNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:description 0..1 Extension A human readable description
    ..... extension 0..0 Extension
    ..... url 1..1 uri "description"
    ..... value[x] 1..1 markdown Value of extension
    .... extension:eligibilityCriteria 0..1 Extension Inclusion and exclusion criteria
    ..... extension 0..0 Extension
    ..... url 1..1 uri "eligibilityCriteria"
    ..... value[x] 1..1 Reference(Group) Value of extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/researchStudy-investigatorRecruitment"
    ... value[x] 0..0 Value of extension

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Target and actual numbers of investigators for a study
    ... id 0..1 id Unique id for inter-element referencing
    ... Slices for extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    .... extension:targetNumber 0..1 Extension The desired number of investigators
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "targetNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:actualNumber 0..1 Extension The actual number of investigators
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "actualNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:description 0..1 Extension A human readable description
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "description"
    ..... value[x] 1..1 markdown Value of extension
    .... extension:eligibilityCriteria 0..1 Extension Inclusion and exclusion criteria
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "eligibilityCriteria"
    ..... value[x] 1..1 Reference(Group) Value of extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/researchStudy-investigatorRecruitment"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Complex Extension: Target and actual numbers of investigators for a study.

    • targetNumber: unsignedInt: The desired number of investigators.
    • actualNumber: unsignedInt: The actual number of investigators.
    • description: markdown: A human readable description.
    • eligibilityCriteria: Reference: Criteria for inclusion or exclusion of investigators.

    Maturity: 2

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Target and actual numbers of investigators for a study
    ... Slices for extension Content/Rules for all slices
    .... extension:targetNumber 0..1 Extension The desired number of investigators
    ..... extension 0..0 Extension
    ..... url 1..1 uri "targetNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:actualNumber 0..1 Extension The actual number of investigators
    ..... extension 0..0 Extension
    ..... url 1..1 uri "actualNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:description 0..1 Extension A human readable description
    ..... extension 0..0 Extension
    ..... url 1..1 uri "description"
    ..... value[x] 1..1 markdown Value of extension
    .... extension:eligibilityCriteria 0..1 Extension Inclusion and exclusion criteria
    ..... extension 0..0 Extension
    ..... url 1..1 uri "eligibilityCriteria"
    ..... value[x] 1..1 Reference(Group) Value of extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/researchStudy-investigatorRecruitment"
    ... value[x] 0..0 Value of extension

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Target and actual numbers of investigators for a study
    ... id 0..1 id Unique id for inter-element referencing
    ... Slices for extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    .... extension:targetNumber 0..1 Extension The desired number of investigators
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "targetNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:actualNumber 0..1 Extension The actual number of investigators
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "actualNumber"
    ..... value[x] 1..1 unsignedInt Value of extension
    .... extension:description 0..1 Extension A human readable description
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "description"
    ..... value[x] 1..1 markdown Value of extension
    .... extension:eligibilityCriteria 0..1 Extension Inclusion and exclusion criteria
    ..... id 0..1 id Unique id for inter-element referencing
    ..... extension 0..0 Extension
    Slice: Unordered, Open by value:url
    ..... url 1..1 uri "eligibilityCriteria"
    ..... value[x] 1..1 Reference(Group) Value of extension
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/researchStudy-investigatorRecruitment"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Constraints

    Id Grade Path(s) Description Expression
    ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
    ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

    R4B

    The extension is unchanged in R4B

    R4

    The extension is unchanged in R4

    R3

    The extension is unchanged in R3

    Search Parameters for this Extension

    (none found)