EMA Write PMS API Implementation Guide - Enrichments
1.0.0 - ci-build

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Data Type Profile: EmaPeriod - Detailed Descriptions

Draft as of 2025-04-04

Definitions for the emaPeriod data type profile.

Guidance on how to interpret the contents of this table can be found here

0. Period
Definition

A time period defined by a start and end date and optionally time.

ShortTime range defined by start and end date/time
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Control0..*
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
per-1: If present, start SHALL have a lower or equal value than end (start.hasValue().not() or end.hasValue().not() or (start.lowBoundary() <= end.highBoundary()))
2. Period.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortExtensionAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..0*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Period.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • Guidance on how to interpret the contents of this table can be found here

    0. Period

    Guidance on how to interpret the contents of this table can be found here

    0. Period
    Definition

    A time period defined by a start and end date and optionally time.

    ShortTime range defined by start and end date/time
    Comments

    A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

    Period is not used for a duration (a measure of elapsed time). See Duration.

    Control0..*
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    per-1: If present, start SHALL have a lower or equal value than end (start.hasValue().not() or end.hasValue().not() or (start.lowBoundary() <= end.highBoundary()))
    2. Period.id
    Definition

    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

    ShortUnique id for inter-element referencing
    Control0..1
    This element is affected by the following invariants: ele-1
    Typeid
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    4. Period.extension
    Definition

    An Extension

    ShortExtension
    Control0..0
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on Period.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 6. Period.start
      Definition

      The start of the period. The boundary is inclusive.

      ShortStarting time with inclusive boundary
      Comments

      If the low element is missing, the meaning is that the low boundary is not known.

      Control0..1
      This element is affected by the following invariants: per-1
      TypedateTime
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      8. Period.end
      Definition

      The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

      ShortEnd time with inclusive boundary, if not ongoing
      Comments

      The end value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03.

      Control0..1
      This element is affected by the following invariants: per-1
      TypedateTime
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Meaning if MissingIf the end of the period is missing, it means that the period is ongoing
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))