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  1. FHIR Specification Feedback
  2. FHIR-26305

SNOMED CT page is missing descendent-of support

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    • Icon: Change Request Change Request
    • Resolution: Persuasive
    • Icon: Medium Medium
    • FHIR Core (FHIR)
    • STU3
    • Terminology Infrastructure
    • ValueSet
    • (NA)
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      Add another section to the SNOMED CT filters on the SNOMED CT on FHIR page to support a "descendant of" (<) filter for SNOMED CT (in addition to the existing 'is a' filter).

      See 2020-11-12 Vocab WG Main call minutes.

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      Add another section to the SNOMED CT filters on the SNOMED CT on FHIR page to support a "descendant of" (<) filter for SNOMED CT (in addition to the existing 'is a' filter). See 2020-11-12 Vocab WG Main call minutes .
    • Rob McClure/Rob Hausam: 9-0-0
    • Enhancement
    • Non-substantive
    • R5

    Description

      The SNOMED CT Expression Syntax says:

      descendantOf = "<"
      descendantOrSelfOf = "<<"

      I think FHIR descendent-of is exactly matching <, while FHIR is-a is exactly matching <<. That must mean that the FHIR SNOMED CT page is missing support for descendent-of.

      I noticed in STU3, but that omission is still true in the current build.

      http://hl7.org/fhir/STU3/valueset-filter-operator.html
      https://confluence.ihtsdotools.org/pages/viewpage.action?pageId=28739405

      Request to add support for descendent-of in SNOMED CT related value sets. I can see how constraint could support the use case, but constraint is a whole lot more powerful and harder to implement.

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            Unassigned Unassigned
            ahenket Alexander Henket
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