SNOMED CT Delta Description

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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 Description file holds descriptions that describe SNOMED CT concepts. A description is used to give meaning to a concept and provide well-understood and standard ways of referring to a 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 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 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

NameDescriptionTypeConstraints
Description_IdUniquely identifies the description.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 concept's state was active or inactive from the nominal release date specified by the Effective_Datebooleanrequired : 1
Module_IdIdentifies the description version's module.integerrequired : 1 level : Nominal
Concept_IdIdentifies the concept to which this description belongs. Note that versions of descriptions and concepts don't belong to each other. Which version of any given description is combined with which version of its owning concept depends on the point in time at which they are accessed.integerrequired : 1 level : Nominal
Language_CodeSpecifies the language of the description text using the two character ISO -639-1 code. Note that this specifies a language level only, not a dialect or country code.stringrequired : 1
Type_IdIdentifies whether the description is an FSN, Synonym or other description type.integerrequired : 1 level : Nominal
TermThe description version's text value.string-
Case_Significance_IdIdentifies the concept enumeration value that represents the case significance of this description version. For example, the term may be completely case sensitive, case insensitive or initial letter case insensitive.integerrequired : 1 level : Nominal
Description_IdEffective_DateIs_ActiveModule_IdConcept_IdLanguage_CodeType_IdTermCase_Significance_Id
454710132018-07-31false90000000000020700827192005en900000000000013009PAS900000000000017005
3833140102018-07-31false900000000000207008257469003en900000000000013009I900000000000017005
3839900132018-07-31false900000000000207008257962003en900000000000013009C900000000000017005
3839970112018-07-31false900000000000207008257969007en900000000000013009M900000000000017005
3840050182018-07-31false900000000000207008257977006en900000000000013009V900000000000017005
3840070142018-07-31false900000000000207008257979009en900000000000013009X900000000000017005
3840260182018-07-31false900000000000207008257997001en900000000000013009s900000000000017005
3849110182018-07-31true900000000000207008258685003en900000000000013009ug900000000000448009
3850690172018-07-31false900000000000207008258770004en900000000000013009l900000000000017005
3851060122018-07-31false900000000000207008258786006en900000000000013009J900000000000017005