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Copy file name to clipboardExpand all lines: Documentation/CommonDataModel_Wiki_Files/StandardizedVocabularies/COHORT_DEFINITION.md
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|definition_type_concept_id|Yes|integer|Type defining what kind of Cohort Definition the record represents and how the syntax may be executed|
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|cohort_definition_syntax|No|varchar(MAX)|Syntax or code to operationalize the Cohort definition|
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|subject_concept_id|Yes|integer|A foreign key to the Concept to which defines the domain of subjects that are members of the cohort (e.g., Person, Provider, Visit).|
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|cohort_instantiation_date|No|Date|A date to indicate when the Cohort was instantiated in the COHORT table|
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|cohort_initiation_date|No|Date|A date to indicate when the Cohort was instantiated in the COHORT table|
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### Conventions
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* The cohort_definition_syntax does not prescribe any specific syntax or programming language. Typically, it would be any flavor SQL, a cohort definition language, or a free-text description of the algorithm.
Copy file name to clipboardExpand all lines: Documentation/CommonDataModel_Wiki_Files/StandardizedVocabularies/CONCEPT_SYNONYM.md
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@@ -8,6 +8,6 @@ The CONCEPT_SYNONYM table is used to store alternate names and descriptions for
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### Conventions
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* The concept_name field contains a valid Synonym of a concept, including the description in the concept_name itself. I.e. each Concept has at least one Synonym in the CONCEPT_SYNONYM table. As an example, for a SNOMED-CT Concept, if the fully specified name is stored as the concept_name of the CONCEPT table, then the Preferred Term and Synonyms associated with the Concept are stored in the CONCEPT_SYNONYM table.
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* The concept_synonym_name field contains a valid Synonym of a concept, including the description in the concept_name itself. I.e. each Concept has at least one Synonym in the CONCEPT_SYNONYM table. As an example, for a SNOMED-CT Concept, if the fully specified name is stored as the concept_name of the CONCEPT table, then the Preferred Term and Synonyms associated with the Concept are stored in the CONCEPT_SYNONYM table.
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* Only Synonyms that are active and current are stored in the CONCEPT_SYNONYM table. Tracking synonym/description history and mapping of obsolete synonyms to current Concepts/Synonyms is out of scope for the Standard Vocabularies.
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