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 1.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-us-ndh/ and changes regularly. See the Directory of published versions

Base Artifacts

The National Directory of Healthcare Providers & Services (NDH) Base Profiles

The following presents the list of base NDH profiles. Each profile defines the minimum mandatory elements, extensions, and terminology requirements that are required to be present (MUST support). For every profile, there is a simple summary of requirements and guidance, the usage and scope of the profile, and the boundaries and relationship with other profiles. A structured table presents a logical view of the content in both a differential and snapshot view. This is complemented with references to relevant terminologies, search parameters, and examples.

• Base CareTeam
• Base Endpoint
• Base HealthcareService
• Base InsurancePlan
• Base Location
• Base Network
• Base Organization
• Base OrganizationAffiliation
• Base Practitioner
• Base PractitionerRole
• Base Restriction
• Base Verification

The NDH Extensions And Their Relationship With The NDH Base Profiles

To address the particular use case requirements of the NDH, a set extension is defined. The subsequent table demonstrates where these extensions are incorporated within the profiles.

Extension/Profile	Base CareTeam	Base Endpoint	Base HealthcareService	Base InsurancePlan	Base Location	Base Network	Base Organization	Base OrganizationAffiliation	Base Practitioner	Base PractitionerRole	Base Restriction
NDH Accessibility					Yes				Yes
NDH Associated Servers		Yes
NDH Communication Proficiency									Yes
NDH Contactpoint Availabletime	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH Delivery Method			Yes
NDH Digital Certificate							Yes		Yes	Yes
NDH Dynamic Registration		Yes
NDH Endpoint Access Control Mechanism		Yes
NDH Endpoint Connection Type		Yes
NDH Endpoint Connection Type Version		Yes
NDH Endpoint IHE Specific Connection Type		Yes
NDH Endpoint Rank		Yes
NDH Endpoint Reference	Yes								Yes
NDH Endpoint Usecase		Yes
NDH Endpoint Non FHIR Usecase		Yes
NDH Endpoint Testing Certification		Yes
NDH Funding Source			Yes				Yes
NDH Healthcareservice Reference	Yes
NDH HealthcareService or Program Requirement			Yes
NDH FHIR IG		Yes
NDH Identifier Status	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH InsurancePlan Reference							Yes
NDH Language Speak			Yes		Yes		Yes
NDH Location Reference	Yes					Yes
NDH Logo			Yes				Yes	Yes
NDH Network Reference			Yes							Yes
NDH NewPatients			Yes		Yes					Yes
NDH Orginization Alias Period							Yes
NDH Orgnization Alias Type							Yes
NDH Org Description							Yes
NDH Payment Accepted			Yes				Yes
NDH Practitioner Qualification									Yes
NDH Qualification							Yes	Yes		Yes
NDH Rating			Yes				Yes		Yes	Yes
NDH Required Document			Yes
NDH Secure Exchange Artifacts		Yes
NDH Trust Framework			Yes
NDH Usage Restriction	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH usage restriction fhir path											Yes
NDH Verification Status	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH Via Intermediary	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes

NDH Base Search Parameters

To facilitate efficient data retrieval and standardized querying from the NDH, a series of search parameters has been established. The associated set of search parameters for each profile can be found in the subsequent list.

• CareTeam Search Parameters
• Endpoint Search Parameters
• HealthcareService Search Parameters
• InsurancePlan Search Parameters
• Location Search Parameters
• Network Search Parameters
• Organization Search Parameters
• OrganizationAffiliation Search Parameters
• Practitioner Search Parameters
• PractitionerRole Search Parameters
• Verification Search Parameters

NDH Base Code Systems

Due to the unavailability of certain required concepts in existing code systems, a distinct set of code systems has been defined within the NDH. You can view this list via the link provided below:

• NDH Base Code System

NDH Base Value Sets

The use cases within NDH require specific values not found in the existing value sets. As such, the NDH has defined a set of value sets, which are listed via the link provided below:

• NDH Base Value Set