Recognized Coordinating Entity (RCE) Implementation Guide
1.9.0 - Release 1

Recognized Coordinating Entity (RCE) Implementation Guide - Local Development build (v1.9.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

## Change Log

### Change Management Overview

Sequoia maintains change control for all assets related to this project, including to this document, the software described by this document, and the associated operational environments (people, processes, and systems). The following sections document the information needed by implementers in terms of change management. Certain information, such as actual environmental access base URLs is confidential and not documented here.

### Implementation Guide Changes

Date | Version | Author | Summary
--- | --- | --- | ---
12/22/2025 | 1.9.0 | Rick Geimer | Updated to version 1.9.0 of the Sequoia base IG Added additional FHIRIGConformance, Roles, and Downtime extension examples Fixed minor typos in examples
09/30/2025 | 1.8.1 | Diana Wright | Added 3 operationDefinition instances to provide guidance on custom operations in the Directory: Activate Hierarchy, Deactivate Hierarchy, Update TEFCAID for Entry and Children Updated example instances to include transaction types, endpoints with type and Data Absent Reason (DAR) URLs where appropriate. Updated IG version to 1.8.1
08/20/2025 | 1.8.0 | Diana Wright | Updated to version 1.8.0 of the Sequoia base IG
08/06/2025 | 1.7.0 | Diana Wright | Updated IG version: 1.7.0 of the Sequoia base IG
07/02/2025 | 1.6.2 | Diana Wright | Changed cardinality of RCE Organization.identifier:TEFCAID to 1..1
06/11/2025 | 1.6.1 | Diana Wright | Added 11 example instances to illustrate scenarios described in SOP section 4.2 Updated binding on RCE Organization.address:united-states-address.state from extensible to required. Updated IG version: 1.6.1
06/10/2025 | 1.6.0 | Diana Wright | Updated IG version: 1.6.0 of the Sequoia base IG
05/13/2025 | 1.5.1 | Rick Geimer | Reverted TEFCA ID to optional (0..1) in RCEOrganization
05/13/2025 | 1.5.0 | Diana Wright | Updated to version 1.5.0 of the Sequoia base IG
02/26/2025 | 1.4.1 | Diana Wright | Changed cardinality for Child Organization.endpoint from 0..* to 0..0 Updated profile description of Child to state that a Child cannot be an endpoint (node). Updated Specification page, section 2.2.1 Profiles, description of Child to state that a Child cannot be an endpoint (node). Added TEFCA ID as required (1..1) in RCEOrganization Added TEFCA ID to 4 RCEOrganization example files
02/26/2025 | 1.4.0 | Diana Wright | Updated to version 1.4.0 of the Sequoia base IG
01/28/2025 | 1.3.0 | Diana Wright | Updated to version 1.3.0 of the Sequoia base IG
12/23/2024 | 1.2.0 | Rick Geimer | Updated to version 1.2.0 of the Sequoia base IG
11/27/2024 | 1.1.0 | Diana Wright | Updated to version 1.1.0 of the Sequoia base IG
08/30/2024 | 1.0.10 | Rick Geimer | Updated to version 1.0.10 of the Sequoia base IG
07/22/2024 | 1.0.9 | Rick Geimer | Updated to version 1.0.9 of the Sequoia base IG Fixed case issue with slice names
05/20/2024 | 1.0.8 | Rick Geimer | Updated to version 1.0.8 of the Sequoia base IG
04/25/2024 | 1.0.7 | Rick Geimer | Updated to version 1.0.7 of the Sequoia base IG
04/08/2024 | 1.0.6 | Rick Geimer | Updated to version 1.0.6 of the Sequoia base IG
03/21/2024 | 1.0.5 | Rick Geimer | Updated to version 1.0.5 of the Sequoia base IG
02/07/2024 | 1.0.4 | Rick Geimer | Updated to version 1.0.4 of the Sequoia base IG
12/13/2023 | 1.0.3 | Rick Geimer | Changed the binding on the PurposesOfUse extension to a required binding to the RCE-Purpose-VS value set
11/03/2023 | 1.0.2 | Rick Geimer | Changed cardinality for Sequoia Endpoint – Endpoint.extension.Transaction from 0..1 to 1..1
07/21/2023 | 1.0.1 | Rick Geimer | Changed cardinality for Sequoia Organization – Organization.identifier:AAID from 0..1 to 0..* Changed cardinality for Sequoia Endpoint – Endpoint.identifier:AAID from 0..1 to 0..*
06/30/2023 | 1.0.0 | Rick Geimer | Initial Release