...

SNOMED CT expression constraint language version 1.2 has been published at http://snomed.org/ecl. 

Implementations

The SLPG is aware of the following implementations of the SNOMED CT Expression Constraint Language:

• SNQuery - http://snquery.veratech.es/
• CSIRO Ontoserver Expression Constraints – Ontoserver - https://ontoserver.csiro.au/shrimp%F0%9F%94%A5/ecl.html
• termMed’s termSpace demo (reference set management) - http://demo.termspace.com/
• Snow Owl MQ (form-based interface) -  https://mq.b2i.sg/snow-owl/
• SNOMED CT Query Service - https://github.com/IHTSDO/snomed-query-service
• SNOMED CT Language Syntax Parsers - http://apg.ihtsdotools.org/

If you know of additional ECL implementations, please contact eps@snomed.org with details.

Future Versions

Additional requirements are being collected for consideration in a future version 1.3 of the SNOMED CT expression constraint language.

...