| Name | Code | URI | Type | Description |
| Specializes | Specializes | | Coding | The 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. |
| Generalizes | Generalizes | | Coding | Inverse of Specializes. Only included as a derived relationship. |
| internalId | internalId | http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id | code | The internal identifier for the concept in the HL7 Access database repository. |
| Status | status | http://hl7.org/fhir/concept-properties#status | code | Designation of a concept's state. Normally is not populated unless the state is retired. |
| Specializes | Specializes | | Coding | The 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. |
| Generalizes | Generalizes | | Coding | Inverse of Specializes. Only included as a derived relationship. |
| internalId | internalId | http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id | code | The internal identifier for the concept in the HL7 Access database repository. |
| Status | status | http://hl7.org/fhir/concept-properties#status | code | Designation of a concept's state. Normally is not populated unless the state is retired. |
| Code | Definition | internalId | Status | internalId | Status |
| alternate | Designates substitute versions for the document in which the link occurs. When used together with the lang attribute, it implies a translated version of the document. When used together with the media attribute, it implies a version designed for a different medium (or media). | 11018, 11018 | active, active | 11018, 11018 | active, active |
| appendix | Refers to a document serving as an appendix in a collection of documents. | 11030, 11030 | active, active | 11030, 11030 | active, active |
| bookmark | Refers to a bookmark. A bookmark is a link to a key entry point within an extended document. The title attribute may be used, for example, to label the bookmark. Note that several bookmarks may be defined in each document. | 11032, 11032 | active, active | 11032, 11032 | active, active |
| chapter | Refers to a document serving as a chapter in a collection of documents. | 11027, 11027 | active, active | 11027, 11027 | active, active |
| contents | Refers to a document serving as a table of contents. Some user agents also support the synonym ToC (from "Table of Contents"). | 11023, 11023 | active, active | 11023, 11023 | active, active |
| copyright | Refers to a copyright statement for the current document. | 11026, 11026 | active, active | 11026, 11026 | active, active |
| glossary | Refers to a document providing a glossary of terms that pertain to the current document. | 11025, 11025 | active, active | 11025, 11025 | active, active |
| help | Refers to a document offering help (more information, links to other sources of information, etc.). | 11031, 11031 | active, active | 11031, 11031 | active, active |
| index | Refers to a document providing an index for the current document. | 11024, 11024 | active, active | 11024, 11024 | active, active |
| next | Refers to the next document in a linear sequence of documents. User agents may choose to preload the "next" document, to reduce the perceived load time. | 11021, 11021 | active, active | 11021, 11021 | active, active |
| prev | Refers to the previous document in an ordered series of documents. Some user agents also support the synonym "Previous". | 11022, 11022 | active, active | 11022, 11022 | active, active |
| section | Refers to a document serving as a section in a collection of documents. | 11028, 11028 | active, active | 11028, 11028 | active, active |
| start | Refers to the first document in a collection of documents. This link type tells search engines which document is considered by the author to be the starting point of the collection. | 11020, 11020 | active, active | 11020, 11020 | active, active |
| stylesheet | Refers to an external style sheet. See the section on external style sheets for details. This is used together with the link type "Alternate" for user-selectable alternate style sheets. | 11019, 11019 | active, active | 11019, 11019 | active, active |
| subsection | Refers to a document serving as a subsection in a collection of documents. | 11029, 11029 | active, active | 11029, 11029 | active, active |