9. A system to generate a database query to retrieve a set of stored data records from an electronic data record system, the system comprising: a computer that includes one or more hardware processors; a repository of terminology content stored in accordance with an information reference model, wherein the information reference model includes a plurality of backbone classes, wherein the plurality of backbone classes are associated with a plurality of other types of backbone classes to form data structures representing a plurality of higher level healthcare concepts; a concept query system that executes on the computer to receive a concept query request comprising a set of search criteria, wherein the search criteria include a first classification identifier corresponding to a first classification container, and a semantic statement that defines, using the first classification identifier, an expected concept query result generated from a terminology service; generate, via a concept query generator, a classification concept query from the concept query request, wherein the classification concept query includes at least a subset of the search criteria and the first classification identifier, provide the classification concept query to the terminology service that manages the repository of terminology content, wherein the terminology content comprises a plurality of domains of concepts, wherein a plurality of semantically equivalent concepts are stored in different domains of concepts, and are mapped to one another using inter-domain or intra-domain mappings defined in the terminology service, and wherein concepts in each domain are organized into a plurality of classification containers, wherein each classification container represents a collection of semantically equivalent concepts having a corresponding classification identifier, identify, using the defined mappings and the semantic statement, one or more classification containers, wherein each of the one or more classification containers includes a concept semantically equivalent to a concept in the first classification container; and create a concept query result by extracting a plurality of concepts associated with the first classification identifier, from the first classification container and the one or more identified classification containers; and a database query generator to receive the plurality of associated concepts and generate the database query comprising predicates corresponding to the plurality of associated concepts.
12. The system of claim 9 , wherein the terminology content comprises concepts that are associated with at least one terminology.