Comments (1)
Hi @DurandA, I'm very sorry no one got back to you about your query, I'm not sure how your question got missed.
It sounds like you would like to search SNOMED CT and filter the results by parent. Could I suggest that rather than fetching the definitions of the concept to do the filtering, I recommend using the Expression Constraint Language (ECL). This would allow you to specify a parent filter and text filter at the same time.
For example the ECL query <404684003 |Clinical finding|
would filter for all the concepts that are a descendant of Clinical finding. In ECL the term between the pipes is optional so this ECL gives the same results: <404684003
.
This can be used when searching concepts using the ecl
parameter. For example: /{branch}/concepts?ecl=<404684003&termActive=true&term=searchTerm
I have also added the termActive
parameter here so that no inactive descriptions are used in the search.
Also, rather than using the native Snowstorm API, it's possible to achieve the same thing using the standardised FHIR Terminology API: https://snowstorm.ihtsdotools.org/fhir/ValueSet/$expand?url=http://snomed.info/sct?fhir_vs=ecl/%3C404684003&filter=asthma
Does that help to answer your question?
Kind regards,
Kai Kewley
Please note that the public Snowstorm server is for light use and testing purposes only. If you need a production instance please set up your own Snowstorm instance.
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