User Tools

Site Tools


documentation:vocabulary:changes_from_version_4

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
documentation:vocabulary:changes_from_version_4 [2015/01/20 03:11]
cgreich
documentation:vocabulary:changes_from_version_4 [2015/01/20 03:13] (current)
cgreich
Line 3: Line 3:
  
 ** Changes to Conventions ** ** Changes to Conventions **
-  * Concept Designation as Standard, Classification and Source+  * Concept Designation as [[documentation:​vocabulary:​standard_classification_and_source_concepts|Standard, Classification and Source]]
     * **Source Concepts**: In contrast to V4.0 of the Standardized Vocabularies,​ there is no longer a distinction between source codes and Concepts. All source codes now have their own Concept. However, in order to distinguish between codes that are used to represent a clinical entity in the data tables, Concepts are now designated Standard Concepts or Source Concepts. ​     * **Source Concepts**: In contrast to V4.0 of the Standardized Vocabularies,​ there is no longer a distinction between source codes and Concepts. All source codes now have their own Concept. However, in order to distinguish between codes that are used to represent a clinical entity in the data tables, Concepts are now designated Standard Concepts or Source Concepts. ​
     * For some vocabularies,​ source codes did have records in the Concept table, such as VA Product, RxNorm Concept Classes "Drug Form", SNOMED Concepts other than Condition and Procedure. These Concept had a concept_level = 0. The concept_id of these non-standard Concepts has been preserved between the versions.     * For some vocabularies,​ source codes did have records in the Concept table, such as VA Product, RxNorm Concept Classes "Drug Form", SNOMED Concepts other than Condition and Procedure. These Concept had a concept_level = 0. The concept_id of these non-standard Concepts has been preserved between the versions.
Line 9: Line 9:
     * **Classification Concepts**: Like the Standard Concepts, the Classification Concepts existed in V4.0 of the Standardized Vocabulary. Their concept_level was typically 3 for drug classifications,​ 1-5 for MedDRA (Condition Classification) and 1-2 for SNOMED Procedure Classifications. Their concept_id has been preserved as well.     * **Classification Concepts**: Like the Standard Concepts, the Classification Concepts existed in V4.0 of the Standardized Vocabulary. Their concept_level was typically 3 for drug classifications,​ 1-5 for MedDRA (Condition Classification) and 1-2 for SNOMED Procedure Classifications. Their concept_id has been preserved as well.
  
-  * Mapping between source and Standard Concepts. ​+  * [[documentation:​vocabulary:​mapping|Mapping]] between source and Standard Concepts. ​
     * Each source code has now a representation as a Source Concept, and the mapping is achieved through the [[documentation:​cdm:​concept_relationship|CONCEPT_RELATIONSHIP]] table. A new relationship_id = "Maps to" (reverse_relationship_id = "​Mapped from") links the Source to the Standard Concepts. ​     * Each source code has now a representation as a Source Concept, and the mapping is achieved through the [[documentation:​cdm:​concept_relationship|CONCEPT_RELATIONSHIP]] table. A new relationship_id = "Maps to" (reverse_relationship_id = "​Mapped from") links the Source to the Standard Concepts. ​
     * The [[documentation:​cdm:​source_to_concept_map|SOURCE_TO_CONCEPT_MAP]] table is no longer used, and therefore no longer populated in the Standardized Vocabularies. However, it still can be used to map local source codes for specific ETL procedures using non-public vocabularies not supported here.     * The [[documentation:​cdm:​source_to_concept_map|SOURCE_TO_CONCEPT_MAP]] table is no longer used, and therefore no longer populated in the Standardized Vocabularies. However, it still can be used to map local source codes for specific ETL procedures using non-public vocabularies not supported here.
documentation/vocabulary/changes_from_version_4.txt ยท Last modified: 2015/01/20 03:13 by cgreich