FHIR Extensions Pack
1.0.0 - Working Copy International flag

This page is part of the FHIR Core Extensions Registry (v1.0.0: Release 1.0) based on FHIR (HL7® FHIR® Standard) v5.0.0. The current version which supersedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

Extension: Observation Focal Subject Code

Official URL: http://hl7.org/fhir/StructureDefinition/observation-focusCode
Standards status: Trial-use Maturity Level: 3 Computable Name: ObsFocusCode
Other Identifiers: id: urn:oid:2.16.840.1.113883.4.642.5.1475

A code representing the focus of an observation when the focus is not the patient of record. In other words, the focus of the observation is different from Observation.subject. An example use case would be using the Observation resource to capture whether the mother is trained to change her child’s tracheostomy tube. In this example, the child is the patient of record and the mother is focal subject referenced using this extension. Other example focal subjects include spouses, related persons, feti, or donors.

Context of Use

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

  • Element ID Observation

Usage info

Usage:

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

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

Simple Extension of type CodeableConcept: A code representing the focus of an observation when the focus is not the patient of record. In other words, the focus of the observation is different from Observation.subject. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is focal subject referenced using this extension. Other example focal subjects include spouses, related persons, feti, or donors.

Maturity : 3

This structure is derived from Extension

Name Flags Card. Type Description & Constraints doco
.. Extension 0..1Extension Focus Code
... extension0..0
... url 1..1uri "http://hl7.org/fhir/StructureDefinition/observation-focusCode"
... value[x] 1..1CodeableConcept Value of extension
Binding: FocalSubjectCodes (example): Derived from both HL7 v3 and SNOMED CT code systems


doco Documentation for this format
Name Flags Card. Type Description & Constraints doco
.. Extension 0..1Extension Focus Code
... id 0..1id Unique id for inter-element referencing
... extension 0..0
... url 1..1uri "http://hl7.org/fhir/StructureDefinition/observation-focusCode"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension of type CodeableConcept: A code representing the focus of an observation when the focus is not the patient of record. In other words, the focus of the observation is different from Observation.subject. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is focal subject referenced using this extension. Other example focal subjects include spouses, related persons, feti, or donors.

Maturity : 3

Differential View

This structure is derived from Extension

Name Flags Card. Type Description & Constraints doco
.. Extension 0..1Extension Focus Code
... extension0..0
... url 1..1uri "http://hl7.org/fhir/StructureDefinition/observation-focusCode"
... value[x] 1..1CodeableConcept Value of extension
Binding: FocalSubjectCodes (example): Derived from both HL7 v3 and SNOMED CT code systems


doco Documentation for this format

Snapshot View

Name Flags Card. Type Description & Constraints doco
.. Extension 0..1Extension Focus Code
... id 0..1id Unique id for inter-element referencing
... extension 0..0
... url 1..1uri "http://hl7.org/fhir/StructureDefinition/observation-focusCode"

doco Documentation for this format

 

Other representations of profile: CSV, Excel, Schematron

Terminology Bindings

Path Conformance ValueSet
Extension.value[x] example FocalSubjectCodes

Constraints

Id Grade Path(s) Details Requirements
ele-1 error **ALL** elements All FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())

Search Parameters for this Extension

(none found)

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