Naming Systems

Access Naming Systems for DirectTrust Standards and Initiatives.

Naming Systems

A NamingSystem is a curated namespace that issues unique symbols within that namespace for the identification of concepts, people, devices, etc. It represents a “system” used within the Identifier and Coding data types and can be noted in a registry for other systems to find and understand.

DirectTrust NamingSystems

NamingSystem Name Description
HispOrganizationNS The naming system for identifying HISP Organizations that submit Directory contribution files.
LocUidNS The naming system for identifying facility locations provided by a HISP in the LOC_UID field of a submitted Directory contribution file.
ProvUidNS The naming system for identifying practitioners provided by a HISP in the PROV_UID field of a submitted Directory contribution file.
OrganizationAffiliationNS The naming system for identifying organization affiliations. These identifiers uniquely identify an Organization being served by a specific HISP. The identifier is created as an OA- followed by the md5 hex hash of the HISPID and an Organization Identifier provided by the Endpoint Verification Service EV_ORG_UID.
OrganizationNS The naming system for identifying an Organization within the DirectTrust Directory. The identifier is created as an O- followed by the md5 hex hash of the HISPID and an Organization Identifier provided by the Endpoint Verification Service EV_ORG_UID.
LocationNS The naming system for idenitying a service Location managed by a specific Organization in the DirectTrust Directory. The identifier is created as L- followed by the md5 hex hash of HISPID, LOC_NAME, LOC_ADDR_1, LOC_ADDR_2, LOC_CITY, LOC_STATE, LOC_ZIP.
PractitionerRoleNS The naming system for identifying a Practitioner’s role within the DirectTrust Directory. These identifiers uniquely identify a Practitioner’s role at a specific Organization or Group Practice, working at specific facility locations, providing specific services and belonging to specific health networks. The identifier is created as PR- followed by the md5 hex hash of HISPID, EV_ORG_UID, LOC_UID, and PROV_UID, PROV_NPI, PROV_NAME.
PractitionerNS The naming system for identifying a Practitioner within the DirectTrust Directory. The identifier is created as P- followed by the md5 hex hash of HISPID, PROV_UID, PROV_NPI, PROV_NAME.
EndpointNS The naming system for identifying an Endpoint within the DirectTrust Directory. For each Endpoint created, the identifier is created as E- followed by the md5 hex hash of HISPID and SERV_DIRECT_ADDR.
DirectAddressNS The naming System for identifying a Direct address Endpoint in the DirectTrust Directory. It is a string that is the actual Direct Address with no hashing.

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