Purpose
An 733619002 | Ordered component type reference set (foundation metadata concept)| allows a collection of componentsto be defined with a specified order. This type of reference retis therefore useful for creating ordered lists and to specify groups where the components that belong to the same group share the same order.
Data structure
An Ordered component reference setis an IntegerComponentreference setis used to represent ordered lists and alternative hierarchies. Its structure is shown in the following table.
Field | Data type | Purpose | Part of Primary Key | |
id | A 128 bit unsigned Integer, uniquely identifying this reference set member. Different versions of a reference set member share the same id but have different effectiveTime. This allows a reference set member to be modified or made active (i.e. removed from the active set) at a specified time. | NO | YES (Full/Snapshot) | |
The inclusive date or time at which this version of the identified reference set memberbecame the current version. The current version of this reference set memberat time T is the version with the most recent effectiveTime prior to or equal to time T . | YES | YES (Full) Optional (Snapshot) | ||
The state of the identified reference set memberas at the specified effectiveTime . If active = 1 (true) the reference set memberis part of the current version of the set, if active = 0 (false) the reference set memberis not part of the current version of the set. | YES | NO | ||
Identifies the SNOMED CT modulethat contains this reference set memberas at the specified effectiveTime . The value must be a subtypeof 900000000000443000 | Module (core metadata concept)| within the metadata hierarchy. | YES | NO | ||
Identifies the reference setto which this reference set memberbelongs. In this case, a subtype descendant of: 447258008 | Ordered type reference set| | NO | NO | ||
A reference to the SNOMED CT componentto be included in the reference set. | NO | NO | ||
Specifies the sort order of the list. The list is ordered by applying an ascending sort of the order value. The value of order =1 represents the highest priority. A value of '0' is not allowed. Duplicate values are permitted and the sort order between two members with the same order value is not defined. Note: The name "order" is a reserved word in some database environments. Please consider this when using this column. | YES | NO |
Metadata
The following metadata in the "Foundation metadata concept" hierarchysupports this reference set:
Descriptor template and examples
The tables below show the descriptor that defines the structure of the
733619002
|
Ordered component type reference set|
pattern and an example of descriptor for a specific reference setthat follows this pattern.
refsetId | referencedComponentId | attributeDescription | attributeType | attributeOrder |
|---|---|---|---|---|
0 | ||||
1 |
Note: The table above omits the initial four columns of data present in the release file. These follow the standards versioning pattern id, effectiveTime, active, active. Additionally, to aid understanding, the table above also shows the termfrom one of the descriptionsassociated with each of the identified concept. The release file only contains the identifier.
Ordered reference set example
refsetId | referencedComponentId (Referenced component) | order (Attribute order) |
|---|---|---|
| 733619002 | Fingers ordered component reference set | | 127053016 127053016 |Thumb| | 1 |
733619002 | Fingers ordered component reference set | |
| 2 |
733619002 | Fingers ordered component reference set | |
| 3 |
733619002 | Fingers ordered component reference set | |
| 4 |
733619002 | Fingers ordered component reference set | |
| 5 |
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