Swift library for FHIR® resource data models

What's New

Maintenance Release 0.4


This is a maintenance release that addresses some issues and introduces small enhancements.

  • BREAKING CHANGES: fix duplicate code system names resulting in #11
  • BREAKING CHANGES: regenerate R4 models to resolve #15
  • Update build models to 4.6.0-048af26
  • Enhancement: make dates & times conform to Comparable and ExpressibleAsNSDate
  • Fix an issue where times with milliseconds were not proper ISO formatted in certain locales


0.4.0 🔥 FHIR DSTU2, STU3, R4, build Works on macOS, iOS, watchOS, tvOS and Linux Swift Package Manager License

FHIRModels is a Swift library for FHIR® resource data models.


  • Native Swift representation of FHIR resources, elements and data types
  • Separate targets for DSTU2, STU3, R4 and latest build versions
  • Enforced non-nullability of mandatory parameters
  • Enums for most closed code systems
  • Enums to support value[x] types
  • Date/Time parsing, validation and conversion to and from NSDate
  • Swift Codable support


FHIRModels works with Swift 5.1 and newer. Running unit tests requires Swift 5.3 and newer.


Swift Package Manager is the recommended way to add FHIRModels to your project:

  1. In Xcode 11 and newer, go to “File” » “Swift Package Management” » “Add Package Dependency...”
  2. Search for “FHIRModels” in the panel that comes up or paste the full URL to the GitHub repository, then select the package
  3. Pick the versioning that best works for you (usually the current version and “up to next major”)
  4. In order to update the dependency, periodically select “Update to Latest Package Versions” from Xcode 11's “File” » “Swift Package Management” menu

Alternatively, you can add FHIRModels to your Package.swift file as a dependency:

dependencies: [
    .package(url: "https://github.com/apple/FHIRModels.git",
            .upToNextMajor(from: "0.2.0"))


Learn how to use FHIRModels in our How To section.

Getting Involved

Please feel free to open GitHub issues for questions, suggestions or issues you may have. Because the majority of the codebase is generated we will not be able to accept Pull Requests at this time.


This work is APACHE 2.0 licensed.

FHIR® is the registered trademark of HL7 and is used with the permission of HL7. Use of the FHIR trademark does not constitute endorsement of this product by HL7.


  • Swift Tools 5.0.0
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Last updated: Mon Feb 06 2023 11:34:47 GMT-0500 (GMT-05:00)