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-current 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

Directory Artifacts

Page standards status: Normative

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

The following presents the list of Directory 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.

• Directory Endpoint
• Directory Group
• Directory HealthcareService
• Directory InsurancePlan
• Directory Location
• Directory Network
• Directory Organization
• Directory OrganizationAffiliation
• Directory Practitioner
• Directory PractitionerRole
• Directory Verification

The NDH Extensions And Their Relationship With The NDH Directory 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	Directory Endpoint	Directory HealthcareService	Directory InsurancePlan	Directory Location	Directory Network	Directory Organization	Directory OrganizationAffiliation	Directory Practitioner	Directory PractitionerRole	Directory Group	Directory Verification
NDH Accessibility				Yes				Yes
NDH Associated Servers	Yes
NDH Communication Proficiency								Yes
NDH Contact Point Available Time	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH Delivery Method		Yes
NDH Dynamic Registration	Yes
NDH Endpoint Access Control Mechanism	Yes
NDH Endpoint IHE Specific Connection Type	Yes
NDH Endpoint Rank	Yes
NDH Endpoint Reference								Yes		Yes
NDH Endpoint Testing Certification	Yes
NDH Funding Source		Yes				Yes
NDH HealthcareService or Program Requirement		Yes
NDH FHIR IG	Yes
NDH Identifier Status	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
NDH Organization Alias Period						Yes
NDH Organization 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 Verification Status	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH Via Intermediary	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NDH Endpoint EnvironmentType	Yes
NDH CMS Enrollment In Good Standing						Yes		Yes			Yes
NDH CMS IAL2 Verified						Yes		Yes			Yes
NDH Aligned with CMS Data Network						Yes		Yes

NDH 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.

• Endpoint Search Parameters
• Group 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 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 Code System

NDH 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 Value Set