SNOMED CT Snapshot Relationship

$395 / year

This dataset describes the Release File structure of SNOMED CT, referred to as Release Format 2 (RF2). The US Edition of SNOMED CT is the official source of SNOMED CT for use in US healthcare systems. The US Edition is a standalone release that combines the content of both the US Extension and the International release of SNOMED CT.

The Relationship file holds one relationship per row. Each relationship is of a particular type, and has a source concept and a destination concept.

Complexity

SNOMED CT (SNOMED Clinical Terminology) provides a common language that assists with the electronic exchange of clinical health information. It enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care. SNOMED CT Can be mapped to other coding systems, such as ICD-10, which helps facilitate semantic interoperability.

A Snapshot release contains the most recent version of every component released up to the time of the snapshot. The version of each component contained in a snapshot is the most recent version of that component at the release time. The ‘Snapshot’ release is useful for a simple installation but does not provide a history or retrospective view of the terminology. There are valid use cases for each Release Type. Each International release will incorporate all three of these Release Types, allowing users to choose the most appropriate format.

In addition to 363 new concepts specific for the US, the March 2018 SNOMED CT US Edition also contains all of the content from the January 2018 SNOMED CT International Edition. Approximately 200 requests for terminology additions and updates were submitted via the US Content Request System (US CRS) to support US clinical health information data exchange.

Date Created

2007-04-01

Last Modified

2018-03-01

Version

2018-03-01

Update Frequency

Semiannual

Temporal Coverage

N/A

Spatial Coverage

United States

Source

John Snow Labs => International Health Terminology Standards Development Organisation (IHTSDO), U.S. National Library of Medicine (NLM)

Source License URL

John Snow Labs Standard License

Source License Requirements

Reporting Requirements

Source Citation

N/A

Keywords

Clinical Terminology, SNOMED CT, IHTSDO, Systematized Nomenclature of Medicine Clinical Terms, Healthcare Terminology, Electronic Health Records, Machine Readable Concept Model

Other Titles

SNOMED CT United States Edition, SNOMED CT Latest Version, Machine Readable Concept Model of SNOMED CT

Name Description Type Constraints
Relationship_IdUniquely identifies the relationship.integerrequired : 1 level : Nominal
Effective_DateSpecifies the inclusive date at which the component version's state became the then current valid state of the componentdaterequired : 1
Is_ActiveSpecifies whether the relationship's state was active or inactive from the nominal release date specified by the Effective_Datebooleanrequired : 1
Module_IdIdentifies the relationship version's module.integerrequired : 1 level : Nominal
Source_IdIdentifies the source concept of the relationship version, i.e., the concept the relationship version emanates from.integerrequired : 1 level : Nominal
Destination_IdIdentifies the concept that is the destination of the relationship version.integerrequired : 1 level : Nominal
Relationship_GroupGroups together relationship versions that are part of a logically associated relationship group. All active Relationship records with the same Relationship_Group number and Source_Id are grouped in this way.integerrequired : 1 level : Ordinal
Type_IdA concept enumeration value from the metadata hierarchy that identifies the semantic type of the relationship version.integerrequired : 1 level : Nominal
Characteristic_Type_IdA concept enumeration value that identifies the characteristic type of the relationship version (i.e. whether the relationship version is defining, qualifying, etc.)integerrequired : 1 level : Nominal
Modifier_IdA concept enumeration value that identifies the type of Description Logic (DL) restriction (some, all, etc.).integerrequired : 1 level : Nominal
Relationship_IdEffective_DateIs_ActiveModule_IdSource_IdDestination_IdRelationship_GroupType_IdCharacteristic_Type_IdModifier_Id
21350252017-09-01false73100012410810155006483340070116680003900000000000011006900000000000451002
3093210262017-09-01false731000124108967800971250020116680003900000000000011006900000000000451002
764270222017-09-01false73100012410811316005577810000116680003900000000000011006900000000000451002
1660720202017-09-01false7310001241081322500771250020116680003900000000000011006900000000000451002
2133570212017-09-01false7310001241084009900971250020116680003900000000000011006900000000000451002
2684620202017-09-01false7310001241087403700983630040116680003900000000000011006900000000000451002
2822090272017-09-01false7310001241088254700571250020116680003900000000000011006900000000000451002
2966650292017-09-01false7310001241089078005577810000116680003900000000000011006900000000000451002
7240222002-01-31true900000000000207008100490042140010116680003900000000000011006900000000000451002
442830252017-09-01false731000124108232446003577810000116680003900000000000011006900000000000451002