- SNOMED CT United States Edition
- SNOMED CT Latest Version
- Machine Readable Concept Model of SNOMED CT
- Clinical Terminology
- SNOMED CT
- Systematized Nomenclature of Medicine Clinical Terms
- Healthcare Terminology
- Electronic Health Records
- Machine Readable Concept Model
SNOMED CT Delta Relationship
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.
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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 Delta release contains only those component versions created, inactivated or changed since the previous release. The ‘Delta’ release is much smaller than a ‘Full’ release and is ideal for updating a ‘Full’ release of the previous version. Adding a ‘Delta’ release to the previous version’s ‘Full’ release will update the installation to a ‘Full’ release of the current Version.
In addition to 623 new concepts specific for the US, the September 2018 SNOMED CT US Edition also contains all of the content from the July 2018 SNOMED CT International Edition. Approximately 543 requests for terminology additions and updates were submitted via the US Content Request System (US CRS) to support US clinical health information data exchange. This latest version of the US Edition also includes the SNOMED CT to ICD-10-CM reference set, with over 123,000 SNOMED CT source concepts mapped to ICD-10-CM targets.
About this Dataset
John Snow Labs; International Health Terminology Standards Development Organisation (IHTSDO), U.S. National Library of Medicine (NLM);
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|Source License Requirements||
Clinical Terminology, SNOMED CT, IHTSDO, Systematized Nomenclature of Medicine Clinical Terms, Healthcare Terminology, Electronic Health Records, Machine Readable Concept Model
SNOMED CT United States Edition, SNOMED CT Latest Version, Machine Readable Concept Model of SNOMED CT
|Relationship_Id||Uniquely identifies the relationship.||integer||level : Nominalrequired : 1|
|Effective_Date||Specifies the inclusive date at which the component version's state became the then current valid state of the component||date||required : 1|
|Is_Active||Specifies whether the relationship's state was active or inactive from the nominal release date specified by the Effective_Date||boolean||required : 1|
|Module_Id||Identifies the relationship version's module.||integer||level : Nominalrequired : 1|
|Source_Id||Identifies the source concept of the relationship version, i.e., the concept the relationship version emanates from.||integer||level : Nominalrequired : 1|
|Destination_Id||Identifies the concept that is the destination of the relationship version.||integer||level : Nominalrequired : 1|
|Relationship_Group||Groups 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.||integer||level : Nominalrequired : 1|
|Type_Id||A concept enumeration value from the metadata hierarchy that identifies the semantic type of the relationship version.||integer||level : Nominalrequired : 1|
|Characteristic_Type_Id||A concept enumeration value that identifies the characteristic type of the relationship version (i.e. whether the relationship version is defining, qualifying, etc.)||integer||level : Nominalrequired : 1|
|Modifier_Id||A concept enumeration value that identifies the type of Description Logic (DL) restriction (some, all, etc.).||integer||level : Nominalrequired : 1|
|Relationship Id||Effective Date||Is Active||Module Id||Source Id||Destination Id||Relationship Group||Type Id||Characteristic Type Id||Modifier Id|