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The

Specref
RefTypefile
tRelationship file
holds oneper row. Eachis
holds one
Gloss
PreSpacefalse
trelationship
per row. Each
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PreSpacefalse
trelationship
is of a particular type, and has a sourceand a destinationAn example of ais given below:
Scg expression
ShowPartsterm
371883000|Outpatient procedure|
Scg expression
ShowPartsterm
116680003|Is a|
Scg expression
ShowPartsterm
71388002|Procedure|
where:

  • Scg expression
    ShowPartsterm
    371883000|Outpatient procedure|
    is the source

  • Scg expression
    ShowPartsterm
    116680003|Is a|
    is theand;

  • Scg expression
    ShowPartsterm
    ShowFormatinline
    71388002|Procedure|
    is the destination

...

Field

...

Data type

...

Immutable

...

Purpose

...

id

...

SCTID

...

Y

...

Uniquely identifies the

...

effectiveTime

...

Time

...

N

...

Specifies the inclusive date at which the component version's state became the then current valid state of the component

...

YES (Full)

Optional (Snapshot) 

...

active

...

Boolean

...

N

...

Specifies whether the state of thewasorfrom the nominal release date specified by the effectiveTime field.

...

moduleId

...

SCTID

...

N

...

Identifies theversion's module. Set to aof

Scg expression
ShowPartsterm
900000000000443000|Module|
within the metadata

...

sourceId

...

SCTID

...

Y

...

Identifies the sourceof theversion. That is thedefined by thisSet to theof ain the Concept File.

...

destinationId

...

SCTID

...

Y

...

Identifies thethat is the destination of theversion.

That is therepresenting the value of the attribute represented by the typeId column.

Set to theof ain the Concept File.

Note that the values that can be applied to particular attributes are formally defined by the   SNOMED CT Machine Readable Concept Model .

...

relationshipGroup

...

Integer

...

N

...

Groups togetherversions that are part of a logically associated relationshipGroup. Allrecords with the same relationshipGroup number and sourceId are grouped in this way.

...

typeId

...

SCTID

...

Y

...

Identifies thethat represent the defining attribute (or relationship type) represented by thisversion.

That is therepresenting the value of the attribute represented by the typeId column.

Set to theof ain the Concept File. The concept identified must be either

Scg expression
ShowPartsterm
116680003|Is a|
or a subtype of
Scg expression
ShowFormatnospace
410662002|Concept model attribute|
. The concepts that can be used as in the typeId column are formally defined as follows:
Scg expression
Borderridge
ShowFormatblock
116680003|is a| OR <410662002|concept model attribute|
Note that the attributes that can be applied to particular concepts are formally defined by the SNOMED CT Machine Readable Concept Model.

...

characteristicTypeId

...

SCTID

...

N

...

Aenumeration value that identifies the characteristic type of theversion (i.e. whether theversion is defining, qualifying, etc.) This field is set to aof

Scg expression
ShowPartsterm
900000000000449001|Characteristic type|
in the metadata.

...

modifierId

...

SCTID

...

N

...

Aenumeration value that identifies the type of(DL) restriction (some, all, etc.). Set to aof

Scg expression
ShowPartsterm
900000000000450001|Modifier|
in the metadata

Note

Currently the only value used in this column is

Scg expression
ShowPartsterm
900000000000451002|Some|
and thus in practical terms this column can be ignored. For further clarification please see notes on modifierId .

...

NO

 

source

Gloss
PreSpacefalse
tconcept
and a destination
Gloss
PreSpacefalse
tconcept.
An example of a
Gloss
PreSpacefalse
trelationship
is given below:
Concept
t371883000|Outpatient procedure|
ShowFormatinline
Concept
t116680003|Is a|
ShowFormatinline
Concept
t71388002|Procedure|
ShowFormatinline
where:

  • Concept
    t371883000|Outpatient procedure|
    ShowFormatinline
    is the source
    Gloss
    PreSpacefalse
    tconcept;

  • Concept
    t116680003|Is a|
    ShowFormatinline
    is the
    Gloss
    PreSpacefalse
    trelationship type
     
    Gloss
    PreSpacefalse
    tconcept
      and;

  • Concept
    t71388002|Procedure|
    ShowFormatinline
    is the destination
    Gloss
    PreSpacefalse
    tconcept.


Bookmarked content insert
Startfilespec
PageREUSE:Relationship File

Only one

Gloss
PreSpacefalse
trelationship
record Only onerecord with the same id field will be current at any point in time. The current record will be the one with the most recent effectiveTime before or equal to the point in time under consideration.

If thefield the

Gloss
PreSpacefalse
tactive
field of this record is false ('0'), then theisat the
Gloss
PreSpacefalse
trelationship
is
Gloss
PreSpacefalse
tinactive
at that point in time. If thefield the
Gloss
PreSpacefalse
tactive
field is true ('1'), then there is abetween theidentified by sourceId and destinationId.a
Gloss
PreSpacefalse
trelationship
between the
Gloss
PreSpacefalse
tSNOMED CT concepts
identified by
Specref
RefTypefield
tsourceId
and
Specref
RefTypefield
tdestinationId
.

The

Specref
RefTypefield
tsourceId
,
Specref
RefTypefield
tdestinationId
,
Specref
RefTypefield
trelationshipGroup
,
Specref
RefTypefield
ttypeId
, characteristicTypeIdand
Specref
RefTypefield
tmodifierId
The sourceId, destinationId, relationshipGroup, typeId, characteristicTypeIdand modifierId will not change between two rows with the same id, in other words they are immutable. Where a change is required to one of these fields, then the current row will be de-activated (by appending a row with the same id and thefield the
Gloss
PreSpacefalse
tactive
field set to false) and a new row with a new id will be appended.

The

Specref
RefTypefield
trelationshipGroup
field is used to groupwith the same sourceId group
Gloss
PreSpacefalse
trelationships
with the same
Specref
RefTypefield
tsourceId
field into one or more logical sets. Awith a relationshipGroup A
Gloss
PreSpacefalse
trelationship
with a
Specref
RefTypefield
trelationshipGroup
field value of '0' is considered not to be grouped. Allwith the same sourceId All
Gloss
PreSpacefalse
trelationships
with the same
Specref
RefTypefield
tsourceId
and non-zero
Specref
RefTypefield
trelationshipGroup
are considered to be logically grouped.

The

Specref
RefTypefield
trelationshipGroup
field will be an unsigned
Specref
RefTypedata type
tInteger
, and will not be limited to a single digit value. There is no guarantee that they will be assigned sequentially, and the values will not be unique across
Gloss

Related Links

PreSpacefalse
tconcepts.

Related Links

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