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Excerpt

Purpose

The 

Concept
ShowPartsterm
t705109006 Code to expression type reference set
 is designed to enable associations between codes in another code system 
Gloss
t(other-codes)
t:other-codes
 and 
Gloss
tSNOMED CT concepts
, where the following constraints apply:

  1. Some of the 
    Gloss
    tother-codes
    t:other-codes
     cannot be mapped to an individual SNOMED CT 
    Gloss
    tconcept
    .
  2. Licensing conditions (or other considerations) prevent addition of new SNOMED CT concepts to represent the same meaning as the 
    Gloss
    tother-codes
    t:other-codes
    .
  3. The 
    Gloss
    tother-codes
    t:other-codes
     can be logically defined using the 
    Gloss
    tSNOMED concept model
     to represent the same meaning 
    Gloss
    t(sufficiently defined)
     or a similar though less specific meaning 
    Gloss
    t(primitive)
    .
  4. Other requirements similar for those applicable to mapping may also apply including:
    1. An indication of the degree of correlation between the  
      Gloss
      tother-code
      t:other-codes
       and the SNOMED CT expression.
    2. An indication of whether the 
      Gloss
      tother-code
      t:other-codes
       was created before any single concept representation of that meaning in SNOMED CT or whether the single concept representation in SNOMED CT predated the creation of the association.

Data Structure

The general approach to the above requirements is to associate each of the 

Gloss
tother-codes
t:other-codes
 with a representation of the same logic based definition as would have been applied to a SNOMED CT concept with that meaning. However, since the  
Gloss
tother-code
t:other-codes
 are not identified by an  
Specref
RefTypedata type
tSCTID
, the logical definition cannot be represented using  
Gloss
tdefining relationships
. There are two potential approaches to this, one would be to use a general purpose description logic language (e.g.  
Gloss
tOWL
) and the other is to use a 
Gloss
tSNOMED CT expression
 to represent each definition. The 
Concept
ShowPartsterm
t705109006 Code to expression type reference set
 is designed to support the expression-based approach.

Caption label
CapIdsimple-map-reference-set-data-structure
CapTypeTable
Code to Expression Reference Set - Data structure

Refset spec table
Sizefs7
RefsetTypeCode to Expression Reference Set

refs


Metadata

The following metadata

Gloss
PreSpacefalse
thierarchy
supports this
Gloss
PreSpacefalse
treference set
:

Caption label
CapIdsimple-map-reference-sets-in-the-metadata-hierarchy
CapTypeTable
Code to Expression Reference Set in the Metadata Hierarchy


Scg expression
Borderridge
  900000000000454005 |Foundation metadata concept|
		900000000000455006 |Reference set|
				705109006 |Code to expression type reference set|



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

Descriptor template and examples

The tables below show the descriptors that define examples of

Gloss
PreSpacefalse
treference sets
that follow the
Concept
t705109006 |Code to expression type reference set (foundation metadata concept)|
ShowFormatinline
pattern.


Caption label
CapIdrefset-descriptor-rows-for
CapTypeTable
Refset Descriptor rows for a Code to Expression Reference Set


refsetId

referencedComponentId (Referenced component)

attributeDescription (Attribute description)

attributeType (Attribute type)

attributeOrder (Attribute order)

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|

Concept
t449608002 |Referenced component|

Concept
t900000000000461009|Concept type component|

0

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|


Concept
t900000000000505001 |Map target|

Concept
t900000000000465000|String|

1

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|

Concept
t706999006 |Expression|

Concept
t706999006 |Expression|

2

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|
Concept
t705109006 |Code to expression type reference set|

Concept
t734867002 |Expression definition status|

Concept
t900000000000461009|Concept type component|

3

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|

Concept
t447247004 |SNOMED CT source code to target map code correlation value|

Concept
t900000000000461009|Concept type component|

4

Concept
t900000000000456007|Reference set descriptor|

Concept
t705109006 |Code to expression type reference set|


Concept
t705116007 |Original code system source for linked content value|

Concept
t900000000000461009|Concept type component|

5

Refset Examples


Caption label
CapIdsample-content-from-a-simple-map-reference-set
CapTypeTable
Sample Content from a Code to Expression Type Reference Set


refsetId

referencedComponentId 

mapSource

expressiondefinitionStatusIdcorrelationIdcontentOriginId

Concept
t705110001 |LOINC Term to Expression reference set|

Concept
t705114005 |LOINC Code System|

48023-6363787002:246093002=720113009,370134009=123029007,246501002=702675006,704327008=122592007,370132008=117363000,704319004=50863008,704318007=705057003

Concept
t900000000000073002 |Sufficiently defined by necessary conditions definition status|

Concept
t447557004 |Exact match map from SNOMED CT source code to target code|

Concept
t705117003 |Originally in LOINC|

Concept
t705110001 |LOINC Term to Expression reference set|

Concept
t705114005 |LOINC Code System|

51406-7363787002:704323007=123027009,704321009=718500008,704327008=122575003,704322002=64033007,704318007=118544000,370132008=30766002,704324001=706939009

Concept
t900000000000073002 |Sufficiently defined by necessary conditions definition status|

Concept
t447557004 |Exact match map from SNOMED CT source code to target code|

Concept
t705117003 |Originally in LOINC|

Concept
t705110001 |LOINC Term to Expression reference set|

Concept
t705114005 |LOINC Code System|

51406-7363787002:370134009=123029007,704327008=122592007,704318007=118556004,370132008=30766002,704319004=50863008,246093002=4546008

Concept
t900000000000073002 |Sufficiently defined by necessary conditions definition status|

Concept
t447557004 |Exact match map from SNOMED CT source code to target code|


Concept
t705117003 |Originally in LOINC|

Concept
t705110001 |LOINC Term to Expression reference set|

Concept
t705114005 |LOINC Code System|

59878-9363787002:370134009=123029007,704327008=258459007,704318007=118556004,246093002=273948005,370132008=30766002,704319004=31773000

Concept
t900000000000073002 |Sufficiently defined by necessary conditions definition status|

Concept
t447557004 |Exact match map from SNOMED CT source code to target code|


Concept
t705117003 |Originally in LOINC|

Concept
t705110001 |LOINC Term to Expression reference set|

Concept
t705114005 |LOINC Code System|

51921-5363787002:704318007=118539007,370134009=123029007,704326004=703765007,704327008=122592007,370132008=30766002,704319004=50863008,246093002=387067003

Concept
t900000000000073002 |Sufficiently defined by necessary conditions definition status|

Concept
t447557004 |Exact match map from SNOMED CT source code to target code|

Concept
t705117003 |Originally in LOINC|

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