Purpose
A 446609009 | Simple type reference set| allows a set of components to be specified for inclusion or exclusion for a specified purpose. This type of reference ret represents an extensional definition of a subset of SNOMED CT components. Thus it can be used to fully enumerate a subset of concepts, descriptions or relationships.
See also Query specification reference set, which can be used to represent an intensional definition of a subset of SNOMED CT components. In an intensional definition, the members of the subset are specified by rules rather than by enumerations (e.g. all subtypes of a specified concepts).
Reference Set Data Structure
A Simple reference set does not have any additional fields.
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 inactive (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 member became the current version. Note: In distribution files the effectiveTime should follow the short ISO date format (YYYYMMDD) and should not include the hours, minutes, seconds or timezone indicator. The current version of this reference set member at 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 member as at the specified effectiveTime . If active = 1 (true) the reference set member is part of the current version of the set, if active = 0 (false) the reference set member is not part of the current version of the set.
| YES | NO | ||
Identifies the SNOMED CT module that contains this reference set member as at the specified effectiveTime . The value must be a subtype of 900000000000443000 | Module (core metadata concept)| within the metadata hierarchy.
| YES | NO | ||
NO | NO | |||
NO | NO |
Metadata
Simple References Sets are subtypes of 446609009 | Simple type reference set| in the metadata hierarchy.
Notes on the tables used to show descriptors and examples The reference set example tables on this page have been revised as follows to aid clarity and understanding:Reference Set Descriptor and Example Data
Descriptor Template
The table below shows the descriptor for a specific reference sets that follows the 446609009 | Simple type reference set| pattern.
refsetId |
referencedComponentId (Referenced component) |
attributeDescription (Attribute description) |
attributeType (Attribute type) |
attributeOrder (Attribute order) |
---|---|---|---|---|
0 |
Example Data
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