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Purpose

A

Concept
t900000000000512005|Query specification type reference set|
allows a serialised query to represent the membership of a subset of
Gloss
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tSNOMED CT components
. A query contained in the
Gloss
PreSpacefalse
treference set
is run against the content of
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tSNOMED CT
to produce a subset of
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tconcepts
,
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tdescriptions
or
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trelationships
. The query is referred to an intensional definition of the subset. It can be run against future releases of
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tSNOMED CT
to generate an updated set of subset members.

The members of the resulting subset may also be represented in an enumerated form as a

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tSimple reference set
. An enumerated representation of a subset is referred to as an extensional definition.

Data structure

A

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tQuery specification reference set
is a
Specref
RefType(data type)
tString
 
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treference set
containing
Specref
RefType(field)
tquery
that represent intensional definitions of subsets of
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tcomponents
. The result of running the query is an extensional representation of the subset of
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tcomponents
which can be represented as a
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tSimple reference set
. Its structure is shown in the following table.

...

Field

...

Data type

...

Purpose

...

Gloss
tMutable
LinkTypesubtle

...

id

...

Specref
RefType(data type)
tUUID

...

A 128 bit unsigned

Specref
RefType(data type)
tInteger
, uniquely identifying this
Gloss
treference set member
.

Different versions of a reference set member share the same

Specref
RefType(field)
tid
but have different
Specref
RefType(field)
teffectiveTime
. This allows a reference set member to be modified or made
Specref
RefType(field)
tactive
(i.e. removed from the active set) at a specified time.

...

NO

...

Specref
RefType(field)
teffectiveTime

...

Specref
RefType(data type)
tTime

...

The inclusive date or time at which this version of the identified

Gloss
Spacetrue
treference set member
became the current version.

The current version of this

Gloss
Spacetrue
treference set member
at time T is the version with the most recent
Specref
RefType(field)
teffectiveTime
prior to or equal to time T .

...

YES

...

YES (Full)

Optional (Snapshot) 

...

Specref
RefType(field)
tactive

...

Specref
RefType(data type)
tBoolean

...

The state of the identified

Gloss
Spacetrue
treference set member
as at the specified
Specref
RefType(field)
teffectiveTime
.

If

Specref
RefType(field)
tactive
= 1 (true) the
Gloss
Spacetrue
treference set member
is part of the current version of the set, if
Specref
RefType(field)
tactive
= 0 (false) the
Gloss
Spacetrue
treference set member
is not part of the current version of the set.

...

YES

...

NO

...

Specref
RefType(field)
tmoduleId

...

Specref
RefType(data type)
tSCTID

...

Identifies the

Gloss
Spacetrue
tSNOMED CT module
that contains this
Gloss
Spacetrue
treference set member
as at the specified
Specref
RefType(field)
teffectiveTime
.

The value must be a

Gloss
Spacetrue
tsubtype
of
Concept
t900000000000443000|Module (core metadata concept)|
ShowFormatinline
within the metadata
Gloss
thierarchy
.

...

YES

...

NO

...

Specref
RefType(field)
trefsetId

...

Specref
RefType(data type)
tSCTID

...

Identifies the

Gloss
Spacetrue
treference set
to which this
Gloss
Spacetrue
treference set member
belongs.

In this case, a subtype descendant of:

Concept
t900000000000512005|Query specification type|

...

Specref
RefType(field)
treferencedComponentId

...

Specref
RefType(data type)
tSCTID

...

A reference to the

Gloss
Spacetrue
tSNOMED CT component
to be included in the
Gloss
treference set
.

...

query

...

Specref
RefType(data type)
tString

...

The serialised query that can be used to (re-)generate the

Gloss
treference set
members.

A standard syntax for use in these queries is currently under development and is due for publication in late 2014.

...

Metadata

...

Gloss
tconcept

...

Gloss
thierarchy

...

Gloss
treference set

...


Caption label
CapIdquery-specification-reference-set-data-structure
CapTypeTable
Query specification reference set - Data structure


Refset spec table
Sizefs7
RefsetTypeQuery Specification Reference Set

Metadata

The following metadata in the "Foundation metadata

Gloss
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tconcept
"
Gloss
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thierarchy
supports this
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treference set
:

Caption label
CapIdhierarchy-of-foundation-metadata-concept
CapTypeTable
Hierarchy of Foundation metadata concept


Scg expression
Borderridge
  900000000000454005 |Foundation metadata concept|
		900000000000455006 |Reference set|
				900000000000512005 |Query specification type|
						900000000000513000 |Simple query specification|

...


Excerpt Include
REUSE:Notes on Reference Set Example Tables
REUSE:Notes on Reference Set Example Tables
nopaneltrue

Descriptor Template

The table below shows the descriptor that defines the structure of the

Concept
t900000000000512005|Query specification type reference set|
pattern.


Caption label
CapIddescriptor-template-for-query-specification-reference-sets
CapTypeTable
Descriptor Template for Query Specification Reference Sets


refsetId

referencedComponentId

attributeDescription

attributeType

attributeOrder

Concept
t900000000000456007|Reference set descriptor|

Concept
t900000000000512005|Query specification type reference set|

Concept
t900000000000514006|Generated reference set|

Concept
t900000000000461009|Concept type component|

0

Concept
t900000000000456007|Reference set descriptor|

Concept
t900000000000512005|Query specification type reference set|

Concept
t900000000000515007|Query|

Concept
t900000000000465000|String|

1

Example Data

In the example below, "serialised query 1" is a text string that can be used to generate members for

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tReference set
1, which is a simple member
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treference set
(without any additional fields within its member records).


Caption label
CapIdexample-rows-from-query-specification-reference-set
CapTypeTable
Example rows from Query Specification Reference Set


refsetId

referencedComponentId

query

Concept
t900000000000513000|Simple query specification|

Concept
t|Target reference set|


Scg expression
< 19829001 |disorder of lung|: 116676008 |associated morphology| = << 79654002 |edema|


References