The Reference Information Model (RIM) is an information model for health care data developed by Health Level 7 International (HL7). Based on the Unified Modeling Language (UML), the Reference Information Model consists of a generic set of classes from which more specific health classes are derived. For example, subclasses of the class “act” include observation and procedure.
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The first draft version of the Reference Information Model was released in June 1996; version 1.0 came out in January 2001. RIM is now used along with coding systems such as the Systematized Nomenclature of Medicine -- Clinical Terms (SNOMED CT) and Logical Observation Identifiers Names and Codes (LOINC) to define medical concepts in the Clinical Document Architecture markup standard.
Coding standardization comes to electronic health records.
Device developers are integrating HL7 language and clinical document architecture.
Harmonizing standards still an obstacle to developing health information exchange.