Terminology Server

TIMS hosts a FHIR server that provides a unique set of ontologies/terminologies/vocabularies, with unique features such as text search and SSSOM-formatted mappings.

Notable features

  • Content: CodeSystem and ConceptMap resources (see more below), and ValueSets (in development).
  • CodeSystem operations: $subsumes, $lookup
  • ConceptMap operations: $closure (in development)
  • ValueSet operations: $expand, $validate-code (in development)

Unique offerings

The TIMS server has a few unique features, some of which are not available on any other terminology server:

  • Text search of concepts (in development)
  • Biomedical ontologies as CodeSystems
  • SSSOM extensions for ConceptMap resources

Terminology content

CodeSystems TIMS hosts several popular biomedical terminologies, but is unique in that it offers several biomedical ontologies in the FHIR CodeSystem format, including:

  • ICD10CM
  • RxNorm
  • SNOMED-CT
  • Mondo
  • HPO
  • CompLOINC
  • OMOP vocabularies

A real-time listing of everything currently loaded can be found: here

A list of next the code systems currently in the works can be found: here

ConceptMap
Many of the terminologies and ontologies also contain mappings to other terminologies/ontologies, and are represented as FHIR ConceptMap resources. TIMS uniquely includes additional fields from the SSSOM extensions (Simple Standard fo Sharing Ontology Mappings) standard, embedded as FHIR extensions.