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• Searching for SNOMED CT content using term matching, the hierarchy, or defining relationships (see Snowstorm Search Guide),
• Retrieving information about a given concept, including descriptions for a given dialect, supertypes, subtypes and defining relationships,
• Executing Expression Constraint Queries (ECL) on a particular SNOMED CT edition, and
• Accessing maps to/from SNOMED CT and other reference set information.

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• Source code: https://github.com/IHTSDO/snowstorm
• Snowstorm Training Test Instance - Native API: https://snowstorm-training.snomedtools.org/snowstorm/snomed-ct
• Snowstorm Test Instance - FHIR Training API: https://snowstorm-training.snomedtools.org/fhir/
  • NB the Test Instance must not be used in production clinical systems! It has rate limiting and no SLA.

The main features of Snowstorm include:

• Open source, based on a modern open-source stack, Elasticsearch, Spring Boot, Docker
• Advanced SNOMED specific API
• Read-only HL7 FHIR API
• Multi-lingual search and content retrieval
• Fully ECL v1v2.3 0 compliant
• Full history (depends on full RF2 import)
• Supports a Read-only mode and an Authoring mode

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This list of terminology servers is provided in alphabetical order. To request the addition or removal of a terminology servers to/from this list, please submit a request via the 'Feedback' button at the bottom of this page.

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