US Core Implementation Guide, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 7.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/US-Core/ and changes regularly. See the Directory of published versions

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Extension: US Core USCDI Requirement Extension

Official URL: http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement				Version: 7.0.0-ballot
Standards status: Trial-use			Maturity Level: 3	Computable Name: USCDIRequirement
Copyright/Legal: Used by permission of HL7 International, all rights reserved Creative Commons License

This extension is only used in the US Core Implementation Guide’’s Profile StructureDefinition elements. It flags elements that are Additional USCDI Requirements for certified systems. In other words, elements that are not marked as Must Support but are required for ONC Health IT certification testing. See the Conformance page for more information.

Context of Use

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

• Element ID ElementDefinition

Usage info

Usage:

• Examples for this Extension: USCoreDocumentReferenceProfile, USCoreMedicationRequestProfile, USCoreObservationScreeningAssessmentProfile, USCorePatientProfile... Show 4 more, USCoreProcedureProfile, USCoreServiceRequestProfile, USCoreSimpleObservationProfile and USCoreSpecimenProfile

Formal Views of Extension Content

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

 

Other representations of profile: CSV, Excel, Schematron

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())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()