US Core Implementation Guide
4.1.0 - STU4 Ballot

This page is part of the US Core (v4.1.0: STU5 Ballot 1) based on FHIR R4. The current version which supercedes this version is 6.1.0. For a full list of available versions, see the Directory of published versions. Page versions: STU6.1 STU6 STU5 STU4 STU3 STU2 STU1


Downloadable Copy of Entire Specification

A downloadable version of this IG is available so it can be hosted locally:


All the examples that are used in this Implementation Guide available for download:

Consolidated CSV and Excel File Representations of Profiles

All the profile information for the US Core Implementation Guide is represented in a single CSV or Excel file. This may be useful to testers and analysts to review elements properties across profiles in a single table:

Package File

The following package file includes an NPM package file used by many of the FHIR tools. It contains all the value sets, profiles, extensions, list of pages and urls in the IG, etc defined as part of this version of the Implementation Guides. This file should be the first choice whenever generating any implementation artifacts since it contains all of the rules about what makes the profiles valid. Implementers will still need to be familiar with the content of the specification and profiles that apply in order to make a conformant implementation. See the overview on validating FHIR profiles and resources:


Schematrons are also available for download and listed below: