National Directory of Healthcare Providers & Services (NDH) Implementation Guide, published by HL7 International / Patient Administration. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-us-ndh/ and changes regularly. See the Directory of published versions
The NDH IG contains the following resources, which are based on FHIR R4 base 4.0.1 and US Core 6.1.0.
CareTeam: Planned participants in the coordination and delivery of healthcare
Endpoint: The technical details of an endpoint that can be used for electronic services
HealthcareService: The details of a healthcare service
InsurancePlan: Details of a Health Insurance product/plan provided by an organization
Location: Details and position information for a physical place
Network (based on Organization): A healthcare provider insurance network
Organization: An organization is a formal or informal grouping of people or organizations with a common purpose
OrganizationAffiliation: Details of relationships between two or more organizations
Practitioner: A practitioner is a person who is directly or indirectly involved in the provisioning of healthcare
PractitionerRole: Describes the relationship between a practitioner and an organization. A practitioner provides services to the organization at a location. Practitioners also participate in healthcare provider insurance networks through their role at an organization
Restriction (based on Consent): Restriction on use/release of exchanged information
Verification (based on VerificationResult): Provide information on which verification process was performed, what was verified, when the verification took place, who performed the verification, and how it was verified for a given instance of a resource
Overview of NDH - Resource Relationships
Note: the following diagrams provide a high-level view of the relationships between resources used in this IG. They do not necessarily reflect all of the relationships/references between resources.
All Resource Relationships 1
A high-level view of the relationships between resources.
In the NDH resource profiles, there is no inherent relationships. Both Organizations and OrganizationAffiliations can declare a network relationship. Consider a scenario where an OrganizationAffiliation, which is part of a Network, is associated with a PractitionerRole through the Organization. This relationship is not automatically inherited by the PractitionerRole. The PractitionerRole must have its own direct link to the Network. Likewise, any network affiliation declared by a PractitionerRole is not automatically inherited by the organization.
All Resource Relationships 2
All resources reference the Endpoint resource.
All Resource Relationships 3
All resources reference the Restriction resource, which allows the usage of restriction down to the resource element level. The Restriction resource SHALL contained in the resource which has the elements need to be restricted.
Practitioner Role Relationships
PractitionerRole describes the relationship between a practitioner and an organization. A practitioner provides services to the organization at a location. Practitioners also participate in healthcare provider insurance networks through their role at an organization.
Organization Affiliation Relationships
Similar to PractitionerRole, OrganizationAffiliation describes relationships between organizations. For example:
The relationship between an organization and an association it is a member of (e.g., hospitals in a hospital association)
An organization that provides services to another organization, such as an organization contracted to provide mental health care for another organization as part of a healthcare provider insurance network
Distinct organizations forming a partnership to provide services (e.g., a cancer center)
Network / Insurance Plan Relationships
A network is a group of practitioners and organizations that provide healthcare services for individuals enrolled in a health insurance product/plan (typically on behalf of a payer).
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