HL7 Terminology
2.0.0 - Publication

This page is part of the HL7 Terminology (v2.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

CodeSystem: Universal Resource Locator Scheme


Defining URL:http://terminology.hl7.org/CodeSystem/v3-URLScheme
Title:Universal Resource Locator Scheme
Status:Active as of 2019-03-20

A Universal Resource Locator (URL) is a type of telecommunications address specified as Internet standard RFC 1738 [http://www.isi.edu/in-notes/rfc1738.txt]. The URL specifies the protocol and the contact point defined by that protocol for the resource.

Publisher:Health Level 7
Content:Complete: All the concepts defined by the code system are included in the code system resource
OID:2.16.840.1.113883.5.143 (for OID based terminology systems)
Source Resource:XML / JSON / Turtle

This Code system is referenced in the content logical definition of the following value sets:


SpecializesThe child code is a more narrow version of the concept represented by the parent code. I.e. Every child concept is also a valid parent concept. Used to allow determination of subsumption. Must be transitive, irreflexive, antisymmetric.Coding
GeneralizesInverse of Specializes. Only included as a derived relationship.Coding
internalIdhttp://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-idThe internal identifier for the concept in the HL7 Access database repository.code
statushttp://hl7.org/fhir/concept-properties#statusDesignation of a concept's state. Normally is not populated unless the state is retired..code

This code system http://terminology.hl7.org/CodeSystem/v3-URLScheme defines the following codes:

cid Content ID**Description:** cid: is the most common mechanism used in webservices. A cid: reference points from the SOAP body to other content in the mime package in which the SOAP envelope is wrapped22603active
file FileHost-specific local file names \[RCF 1738\]. Note that the file scheme works only for local files. There is little use for exchanging local file names between systems, since the receiving system likely will not be able to access the file.14872active
ftp FTPThe File Transfer Protocol (FTP) \[RFC 1738\].14871active
hl7-att HL7 Attachment**Description:** A reference to an HL7 attachment by it's identifier, which takes the form hl7-att:\[II.literal\], such as hl7-att:
http HTTPHypertext Transfer Protocol \[RFC 2068\]. http://www.ietf.org/rfc/rfc2068.txt14870active
mailto MailtoElectronic mail address \[RFC 2368\] http://www.ietf.org/rfc/rfc2368.txt14869active
mllp MLLP**Description:** Mimimal Lower Layer Protocol. See Transport Specification: MLLP, Release 2 (HL7 V3 Transport specification).21461active
nfs NFSNetwork File System protocol \[RFC 2224\]. Some sites use NFS servers to share data files. http://www.ietf.org/rfc/rfc2224.txt14873active
tel TelephoneA voice telephone number \[http://www.ietf.org/rfc/rfc3966.txt and http://www.ietf.org/rfc/rfc2806.txt\].14867active
telnet TelnetReference to interactive sessions \[RFC 1738\]. Some sites, (e.g., laboratories) have TTY based remote query sessions that can be accessed through telnet. http://www.ietf.org/rfc/rfc1738.txt14874active
fax FaxA telephone number served by a fax device \[http://www.ietf.org/rfc/rfc3966.txt and http://www.ietf.org/rfc/rfc2806.txt\].14868retired
modem ModemA telephone number served by a modem device \[http://www.ietf.org/rfc/rfc3966.txt and http://www.ietf.org/rfc/rfc2806.txt\].14875retired
x-text-fax Fax**Description:** A telephone number served by a fax device \[http://www.ietf.org/rfc/rfc3966.txt and http://www.ietf.org/rfc/rfc2806.txt\]22605retired
x-text-tel Text Telephone**Description:** A text telephone - a telephone which is designed for use by the hearing-impaired **Notes:** * x-text-fax is required to replace fax, since this has been deprecated by W3C. * hl7-att is associated with a series of rules that must be followed. These rules are documented in Datatypes R2 * This domain is external and extensible, so documenting this simply clarifies consistent usage for these use cases.22606retired


2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.