Release 4B Snapshot #1
Table of ContentsThis page is part of the FHIR Specification v4.3.0-snapshot1: R4B Snapshot to support the Jan 2022 Connectathon. About the R4B version of FHIR. The current officially released version is 4.3.0. For a full list of available versions, see the Directory of published versions 
| FHIR Infrastructure Work Group | Maturity Level: N/A | Standards Status: Informative |
Welcome to the FHIR R4B Snapshot. R4B is a special, limited scope specification in which most content remains strictly
compatible with R4 . However, it advances and revamps a limited set of
content to allow advancing the maturity level of this content faster than could be achieved by waiting for the
next major release (R5), currently slated for final publication towards the end of 2022.
This resulting R4B release will be strictly backward compatible with R4, except as described in the changes listed below:
STU Note: One of the resources with substantive (and breaking changes) made as part of this release falls outside the originally intended scope of R4B - Substance. The FHIR Management Group has chosen to allow the ballot to proceed with these breaking changes in place, however it reserves the right to revert some or all the breaking changes to allow R4B to be safely substitutable for R4 outside the medication regulation and evidence-based medicine communities. Balloters are encouraged to comment on the impact of allowing R4 to be updated with the breaking changes to this resource, as well as the impact of rolling back these breaking changes. Further details can be found below.
(THO) as a shared source for HL7 terminology, which moves certain content out of the FHIR specification and into the THO implementation guideThe rest of this page has not been updated for changes since R4B was balloted. it will be updated and moved to the specification before R4B is published.
These resources have been significantly refactored based on feedback from the U.S. Federal Drug Administration (FDA), the European Medicines Agency (EMA), Health Canada and others. The community has indicated that the versions of the 'Medication Definition' resources as published in R4 were not implementable as published and have not been implemented - as such a significant refactoring is still 'compatible' with R4. All resources have had adjustments to data elements, data types, definitions, code bindings, etc. The maturity levels of these resources have also been increased. High level changes include:
The list of allowed targets for Reference or Canonical elements has been extended for the following elements:
) and FHIR-29930 ))))The following resources have had their maturity levels increased to level 3+, which involved non-substantive changes including adding missing RIM mappings where appropriate, minor clean-up of definitions and usage notes, corrections to examples, and defining example bindings (and associated code systems and value sets) when needed. Note that additional maturity levels may be adjusted prior to R4B publication where such changes are driven by implementation experience or other factors and do not involve substantive change to resources.
))))))These are minor changes to documentation that do not strictly fall within the banner of "technical corrections" but have no direct impact on implementation:
))))These technical corrections are not subject to ballot and are listed here for information purposes only. However, if you believe any are erroneous, please submit a comment referencing this page. The technical corrections made here generally align with the FHIR Management Group's policy of only making technical corrections that influence tooling behavior. Wording clarifications, spelling errors, etc. generally are only applied to future versions unless especially likely to create dangerous situations in the previous release.
| Resources | |
| AllergyIntolerance | FHIR-23008 - Corrected FHIRPath and Schematron XPath expressions for ait-1 and ait-2 constraints |
| Bundle | FHIR-25525 - Correct bdl-8 to allow fullUrl to be missing |
| CapabilityStatement | FHIR-19955 - Correct Schematron XPath on cpb-15 and cpb-16 constraints |
| Condition | FHIR-23008 - Corrected FHIRPath and Schematron XPath expressions for con-3 constraint |
| Consent | FHIR-27940 - Corrected invalid example value
FHIR-30793 - Corrected documentation referring to removed 'except' element.
FHIR-31482 - Removed extra closing brackets from ppc-2, ppc-3, ppc-4 and ppc-5 constraint Schematron XPaths |
| DeviceUseStatement | FHIR-26900 - Correct 'patient' search parameter to be only Patients |
| DomainResource | FHIR-26307 - Correct dom-3 Schematron XPath and FHIRPath expressions
FHIR-26593 - Correct dom-3 to require that referenced contained elements have an id' |
| Library | FHIR-29829 - Correct URLs in FHIRHelpers and FHIRModelInfo libraries |
| Parameters | FHIR-21180 - Correct Schematron XPath for inv-1 constraint |
| Patient | FHIR-20462 - Corrected url for motherMaidenName search parameter |
| Questionnaire | FHIR-25390 - Corrected capitalization in que-7 FHIRPath expression
FHIR-26831 - Corrected FHIRPath expression for que-12 constraint
FHIR-29595 - Corrected context invariant in questionnaire-displaycategory extension
FHIR-31483 - Corrected que-5 constraint Schematron XPath |
| Resource | FHIR-31387 - Create SearchParameter instance for _list search parameter |
| RiskAssessment | FHIR-25796 - Corrected FHIRPath expression for ras-2 constraint |
| StructureDefinition | FHIR-20391 - Corrected Schematron XPath expression for sdf-20 constraint
FHIR-26877 - Removed incorrect sdf-8 escaping in expression
FHIR-28312 - Corrected type for 'profile' parameter in $validate operation to be canonical, not uri |
| Data Types | |
| Duration | FHIR-28415 - Corrected Schematron XPath for drt-1 constraint |
| Element | FHIR-26565 - Change global-1 to allow empty Parameters instance |
| ElementDefinition | FHIR-19968 , FHIR-26306 - Correct Schematron XPath for eld-19 |
| TriggerDefinition | FHIR-25088 - Correct trd-3 constraint Schematron XPath |
| Pages | |
| search | FHIR-28313 - Added the _source search parameter to the summary table |
FHIR ®© HL7.org 2011+. FHIR R4B Ballot #1 hl7.fhir.core#4.3.0-snapshot1 generated on Mon, Dec 20, 2021 14:16+1100.
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