Structured Data Capture
3.0.0 - STU 3 International flag

Structured Data Capture, published by HL7 International - FHIR Infrastructure Work Group. This is not an authorized publication; it is the continuous build for version 3.0.0). This version is based on the current content of https://github.com/HL7/sdc/ and changes regularly. See the Directory of published versions

Extension: Observation link period

Official URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod Version: 3.0.0
Standards status: Trial-use Maturity Level: 3 Computable Name: ObservationLinkPeriodExtension

Indicates the time-period (from ‘now’) to search for observations that match the Questionnaire.item.code and Questionnaire.subject when pre-populating the QuestionnaireResponse.

Context of Use

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

  • Questionnaire.item
  • ElementDefinition

NOTE: Multiple repetitions of this extension are possible. All can be used when populating a Questionnaire item. However, when extracting from a QuestionnaireResponse, if more than one is specified then exactly one repetition must have the questionnaire-observationExtract extension present with a value of 'true'.

When there are multiple codes appropriate for extract (e.g. multiple possible observation codes for weight, reflecting measurement techniciques, whether the subject is fully clothed, etc.), the one selected for extraction should most accurately reflect the semantics of the question. For example, if the question is "Current body weight:", then it would be most appropriate to select a generic code that corresponds to the generic concept of "Body Weight" than it does to one that says "Body Weight - clothed", "Body Weight - measured", or "Body Weight - reported" as there is nothing about the question that indicates that any of those narrower meanings apply.

Additional details on the use of this extension can be found on the Questionnaire Population page.

Usage info

Usage:

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

Fixed Value: 1 element

Maturity: 3

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionRelevant time to pre-pop observation
... url 1..1uri"http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod"
... value[x] 0..1DurationValue of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionRelevant time to pre-pop observation
... id 0..1stringUnique id for inter-element referencing
... Slices for extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
... url 1..1uri"http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod"

doco Documentation for this format

This structure is derived from Extension

Summary

Fixed Value: 1 element

Maturity: 3

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionRelevant time to pre-pop observation
... url 1..1uri"http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod"
... value[x] 0..1DurationValue of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionRelevant time to pre-pop observation
... id 0..1stringUnique id for inter-element referencing
... Slices for extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
... url 1..1uri"http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod"

doco Documentation for this format

 

Other representations of profile: CSV, Excel, Schematron

Constraints

IdGradePathDetailsRequirements
ele-1errorExtensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1errorExtensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1errorExtension.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1errorExtension.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1errorExtension.value[x]All FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())