Page Status: draft updated 2025-08-05
Extensions
Page index
Introduction
The HL7 FHIR specification covers the most common resource types and the most common elements within those resources for the healthcare industry. Concepts that are of less common use can be added to the generic resources by adding so called FHIR extensions.
The Swedish National Catalog of Organization, Offerings and Contracts relies on extensions to extend the generic and international FHIR specification with concepts specific to Sweden and the purpose of the Swedish National Catalog of Organization, Offerings and Contracts.
In the Swedish National Catalog of Organization, Offerings and Contracts all incoming resources are interpreted as its base resource with the constraints and extensions specified in the profile and in other documentation, e.g. use cases (sv: tillämpningsanvisningar).
It is important to understand that extensions are mutable. A profile may evolve by adding new extensions. Systems must be able to handle this as long as the new data is not vital for existing use cases. This applies to standard FHIR elements also. Elements not used in one version may come to use in a later version.
Extensions used in this guide
Extensions defined in this guide
Note that the links of the extensions defined by the catalog will open the extension in the Swedish National Catalog of Organization, Offerings and Contracts project on Simplifier.
| Name | Description | Version |
|---|---|---|
| HVOContactExtension | Extensions to add R5 ExtendedContactDetail data type to R4. HVOContactExtension contains information about where and how a person or an organization can be reached. | 0.1.0 |
| HVOContractAdditionalRelationshipExtension | Extension for Contract to supply information about relationships between contracts. | 0.1.0 |
| HVOHealthcareServiceEncounterMeansExtension | HVO extension for healthcare service means of encounter (e.g. physical, virtual) | 0.1.0 |
| HVONotAvailableTime | HVONotAvailableTime contains information about deviations from regular available times. | 0.1.0 |
| HVOOrganizationActiveStatusExtension | The status which the organization is registered with in SCB:s Business Register (sv: Företagsregister), where true implies 'active' and false implies 'inactive'. | 0.1.0 |
| HVOOrganizationAdditionalRelationshipExtension | Extension for Organization to supply potential relationships between organizations, for example that an organization owns or is owned by another organization. | 0.1.0 |
| HVOOrganizationalUnitAdditionalRelationshipExtension | Extension for Organization to supply potential relationships between organizational units, for example that an organization owns or is owned by another organizational unit. | 0.1.0 |
| HVOOrganizationLegalFormExtension | Extension for legal form of an organization. | 0.1.0 |
| HVOOrganizationOwnershipExtension | Extension for organization ownership type | 0.1.0 |
| HVOLocationPeriodExtension | Extension for Location to express period of validity. | 0.1.0 |
| HVOHealthcareServicePeriodExtension | Extension for the period during which a service is available and offered | 0.1.0 |
| HVOEligibilityValueExtension | Extension for HealthcareService.eligibility to reference a Group | 0.1.0 |
| HVOAvailableTime | HVOAvailableTime contains information about which days and hours something is available, for example opening hours. | 0.1.0 |
| HVOContactPeriodExtension | Extension for contact when a BackboneElement to express period of validity. | 0.1.0 |
Extensions defined by external parties
| Name | Description |
|---|---|
| organization-period | The date range that this organization should be considered available. |
| qualification | Reference to version R5 of Organization in order to use element Organization.qualification. |