Purpose

An 900000000000516008 |Annotation type reference set| allows String (data type) to be associated with components for any specified purpose.

Data structure

An String (data type) used to apply text annotation (field) to selected .

Table 46. Annotation reference set - Data structure
Field	Data type	Purpose
id (field)	UUID (data type)	A 128 bit unsigned Integer (data type), uniquely identifying this . Different versions of a reference set member share the same id (field) but have different effectiveTime (field). This allows a reference set member to be modified or made active (field) (i.e. removed from the active set) at a specified time.
effectiveTime (field)	Time (data type)	The inclusive date or time at which this version of the identified became the current version. The current version of this at time T is the version with the most recent effectiveTime (field) prior to or equal to time T .
active (field)	Boolean (data type)	The state of the identified as at the specified effectiveTime (field) . If active (field) = 1 (true) the is part of the current version of the set, if active (field) = 0 (false) the is not part of the current version of the set.
moduleId (field)	SCTID (data type)	Identifies the that contains this as at the specified effectiveTime (field) . The value must be a of 900000000000443000 \|Module (core metadata concept)\| within the metadata .
refsetId (field)	SCTID (data type)	Identifies the to which this belongs. In this case, set to 900000000000516008 \|Annotation type reference set\| .
referencedComponentId (field)	SCTID (data type)	The identifier of the to be annotated.
annotation (field)	String (data type)	The text annotation (field) to attach to the identified by referencedComponentId (field) .

Metadata

The following metadata in supports this :

900000000000454005 |Foundation metadata concept|
- 900000000000455006 |Reference set|
  - 900000000000516008 |Annotation type|
    - 900000000000517004 |Associated image|

Figure 15. Annotation References Sets in the Metadata Hierarchy

Descriptor template

The tables below show the descriptors that define the structure of the 900000000000516008 |Annotation type reference set| pattern and examples of the descriptors for specific that follow this pattern.

Table 47. Descriptor Template for Annotation Reference Sets
refsetId	referencedComponentId	attributeDescription	attributeType	attributeOrder
900000000000456007 \|Reference set descriptor\|	900000000000516008 \|Annotation type\|	900000000000518009 \|Annotated component\|	900000000000461009 \|Concept type component\|	0
900000000000456007 \|Reference set descriptor\|	900000000000516008 \|Annotation type\|	900000000000519001 \|Annotation\|	900000000000465000 \|String\|	1

The attributeType (field) for the Annotation field can be any of the " string " in the metadata . This is described in more detail under the " descriptor" section.

The table below holds the Descriptor for the "Associated image" annotation (field) , which allows URLs to be associated with :

Table 48. Descriptor for 900000000000517004 \|Associated image reference set\|
refsetId	referencedComponentId	attributeDescription	attributeType	attributeOrder
900000000000456007 \|Reference set descriptor\|	900000000000517004 \|Associated image\|	\|Annotated component\|	900000000000461009 \|Concept type component\|	0
900000000000456007 \|Reference set descriptor\|	900000000000517004 \|Associated image\|	\|Image\|	900000000000469006 \|URL\|	1

Note that in the table above, the |URL| is a of | string | in the metadata.

Note: The tables above omit the initial four columns of data present in the release file. These follow the standards versioning pattern id (field), effectiveTime (field), active (field), active (field). Additionally, to aid understanding, the tables above also show the from one of the associated with each of the identified . The release file only contains the .

Annotation reference set example

As no annotation reference sets are included in the International Release, these sample rows are for illustration only.

Table 49. Example of "Associated image" Annotation Reference Set
refsetId	referencedComponentId	Annotation
900000000000517004 \|Associated image\|	80891009 \|Heart structure\|	http://en.wikipedia.org/wiki/Heart#mediaviewer/File:Wiki_Heart_Antomy_Ties_van_Brussel.jpg
900000000000517004 \|Associated image\|	86174004 \|Laparoscope\|	http://www.educationaldimensions.com/eLearn/endoscope/bigScope.html

In the above example, the two URLs have been used to annotate two with images on the web. It is not recommended that this mechanism be used to annotate with text that may require translation to other . Instead, such text should be included under an appropriate type within the Description file .