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Previous implementations of the HL7 loaded into LexEVS have made use of artifacts in the RIM database. The current requirements call for loading data directly from the Model Interchange format XML documents also known as MIF. These sources expand the set of likely entities and relationships as well as add some assertions about concept domains and data types defined in the expanded definitions of the RIM available in the .coremif documents. This creates some problems around the unique identifier used for entities defined in the current HL7 load implementation as no correlation exists for the uniquely defined values in those portions of the .coremif documents where correlations to entities from the MIF to LexEVS will require further definition.
Mapping from the .coremif Files to LexEVS
Two separate source files exist with the file extension coremif in the RIM distribution package, "DEF=UV=RIM=<version>" and "DEF=UV=VO=<version>." The first defines a kind of super hierarchy to the RIM and the second defines the values and relationships that are consistent with the current load of the HL7 RIM to LexEVS.
