US Core Implementation Guide
10.0.0-ballot - STU 10 Ballot
US Core Implementation Guide
10.0.0-ballot - STU 10 Ballot
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 10.0.0-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
| Page standards status: Informative |
| Official URL: http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core | Version: 10.0.0-ballot |
| NPM package name: hl7.fhir.us.core | ComputableName: USCore |
The US Core Implementation Guide defines the minimum set of FHIR RESTful interactions for each of the US Core Profiles to access patient data. The Data Access Framework and the Argonaut DSTU2 guides initially formed the basis for US Core. The Profiles are updated annually to support the latest requirements from The Office of the National Coordinator for Health Information Technology (ONC) U.S. Core Data for Interoperability (USCDI). For a summary of significant changes and a detailed list of the changes between versions, see the Change Notes at https://hl7.org/fhir/us/core/changes.html
This is an R4 IG. None of the features it uses are changed in R4B, so it can be used as is with R4B systems. Packages for both R4 (hl7.fhir.us.core.r4) and R4B (hl7.fhir.us.core.r4b) are available.
This IG Contains the following dependencies on other IGs.
Package hl7.fhir.uv.extensions.r4#5.2.0 This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Mon, Feb 10, 2025 21:45+1100+11:00) |
Package hl7.fhir.uv.extensions.r4#5.3.0 This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Sat, May 16, 2026 18:32+1000+10:00) |
Package hl7.fhir.uv.extensions.r4#1.0.0 This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Sun, Mar 26, 2023 08:46+1100+11:00) |
Package hl7.fhir.uv.xver-r5.r4#0.1.0 Extensions for Using Data Elements from FHIR R5 in FHIR R4 (built Fri, Mar 20, 2026 15:40+1100+11:00) |
Package hl7.fhir.uv.tools.r4#1.1.2 This IG defines the extensions that the tools use internally. Some of these extensions are content that are being evaluated for elevation into the main spec, and others are tooling concerns (built Tue, Mar 24, 2026 11:13+1100+11:00) |
Package hl7.fhir.uv.extensions.r4#5.3.0-ballot-tc1 This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Sun, Aug 3, 2025 06:28+1000+10:00) |
Package hl7.fhir.uv.sdc#4.0.0 The SDC specification provides an infrastructure to standardize the capture and expanded use of patient-level data collected within an EHR. (built Tue, Mar 24, 2026 16:16+1100+11:00) |
There are no Global profiles defined
This publication includes IP covered under the following statements.
In HL7 FHIR, expansion parameters are special query parameters that you can pass to a ValueSet $expand operation to control and customize how the ValueSet is expanded (i.e., how the full list of codes/concepts is generated from the ValueSet definition). US Core uses the following parameters.
The following IG Parameters are set for this Implementation Guide:
IG © 2027+ HL7 International / Cross-Group Projects. Package hl7.fhir.us.core#10.0.0-ballot based on FHIR 4.0.1. Generated 2026-09-11
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