SNOMED Documentation Search
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The expression will be represented in the representational from with the smallest number of refinements which full represents the meaning of the code in the other code system. This form which is derived as follows is sometimes referred to as the "author normal form".
Starting point
The stated representation as authored to most accurately reflect the meaning of the source code using the SNOMED CT concept model.
Steps applied to derive the distributed expression
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Each expression conforms to the SNOMED CT Composition Grammar. For further details of the syntax please see the Compositional Grammar - Specification and Guide (http://snomed.org/scg). The expression represents the SNOMED CT definition of the LOINC Term based in the recently developed concept model for the
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Field | Data type | Purpose | ||||||||||||||||||
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id |
| A 128 bit unsigned integer, uniquely identifying the reference set member. | ||||||||||||||||||
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| Specifies the inclusive date at which this change becomes effective. | ||||||||||||||||||
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| Specifies whether the member's state was active or inactive from the nominal release date specified by the effectiveTime field. | ||||||||||||||||||
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| Identifies the member version's module. Set to a child of |Module| within the metadata hierarchy. | ||||||||||||||||||
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| Identifies the reference set. | ||||||||||||||||||
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| A reference to a SNOMED CT metadata concept referring to the
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| The value of the LOINC Term Code associated with the expression. | ||||||||||||||||||
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| A reference to the SNOMED CT concept being mapped to/from the LOINC Term Code. | ||||||||||||||||||
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| Indicates whether or not the expression contains a sufficient definition of the LOINC Term Code in the mapTarget field.
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| The correlation between the SNOMED CT expression and the LOINC Term Code.
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| Indication of whether concept was initially in one of the terminologies (LOINC or SNOMED CT) and added to the other as part of mapping or was in both terminologies at the outset. Values are subtype children
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The following metadata in the "Foundation metadata concept" hierarchy supports this reference set:
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Suggestion is use of current values set. However, an argument can be made in favor of duplication of the hierarchy with "source code" replaced by "expression".
Scg expression | ||
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447247004 | SNOMED CT source code to target map code correlation value| 447559001 | Broad to narrow map from SNOMED CT source code to target code | 447557004 | Exact match map from SNOMED CT source code to target code | 447558009 | Narrow to broad map from SNOMED CT source code to target code | 447560006 | Partial overlap between SNOMED CT source code and target code | |
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