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documentation:vocabulary:general_structure_and_use [2015/01/24 14:29]
cgreich
documentation:vocabulary:general_structure_and_use [2015/09/18 18:32] (current)
cgreich
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 ===== General Structure and Use ===== ===== General Structure and Use =====
-The Standardized Vocabularies are organized into Domains and Vocabularies. Domains refer to the nature of type of a clinical entity, which also defines the CDM data table where a data record is stored, while Vocabularies are sets of Concepts imported from external national or international existing standards, or created by the Standardized Vocabularies Team if no suitable standard is available. 
  
-There is no one-to-one relationship between Domains and Vocabularies. Some Vocabularies are very broad, such as SNOMED-CT or Read, and contain Concepts ​of all medical Domains. Other vocabularies are specific ​for a certain Domain, such as RxNorm for Drugs or ICD-9-Proc for ProceduresIn many cases Vocabularies are generally assumed in the community ​to be of a single Domainwhen in fact they are not: For exampleCPT-4 and HCPCSare expected by their name to contain Procedure codesonlybut contain Observation,​ Condition, Device and Drug Concepts:+The OMOP Standardized ​Vocabularies ​combine a number ​of different ​vocabularies ​that are used for different aspects of recording healthcare informationThese different purposes cause the vocabularies ​to come with different formatsqualitycomprehensiveness ​and coverageand life cycle. In order to bring some order into this variabilitya number of structural elements were introduced and exposed to the vocabularieswhich are described in the following.
  
-{{ :​documentation:vocabulary:​domainsandvocabs.jpg?​nolink&​800 |Domains and Vocabularies}} +**Note:** Even though the content of the vocabularies are left intact, the new format and structural elements will result in a different representation of each vocabulary ​than its native formIf you need a vocabulary in its native form, do not use the OMOP Standardized ​Vocabularies.
- +
-{{ :​documentation:​vocabulary:​domainsandvocabs.jpg?nolink |}}+
documentation/vocabulary/general_structure_and_use.1422109765.txt.gz · Last modified: 2015/01/24 14:29 by cgreich