14:44:40 RRSAgent has joined #hcls 14:44:44 logging to https://www.w3.org/2026/04/16-hcls-irc 14:44:45 rrsagent, make logs public 14:44:50 Meeting: FHIR RDF 14:44:52 Chair: David Booth 14:54:47 TallTed has joined #hcls 15:03:54 Topic: R6 priorities 15:04:31 dbooth: Want to prioritize any R6 changes needed 15:05:17 tim: If we have approval for R6 changes, the implementation can be done after publication, but we'll want them in the spec (RDF page, examples, OWL, shex). 15:05:45 ... There's a few things I'd like to change, including Concept IRIs on CodeableConcepts. 15:05:52 ... Main thing is getting consensus on these changes. 15:06:08 https://github.com/w3c/hcls-fhir-rdf/issues/219 15:06:30 https://github.com/w3c/hcls-fhir-rdf/issues/224 15:07:08 https://github.com/w3c/hcls-fhir-rdf/issues/221 15:07:23 https://github.com/w3c/hcls-fhir-rdf/issues/223 15:07:55 tim: for #223, we create a new class for the element, like syntactic sugar. And we also do it for other complex elements. 15:08:12 ... It makes the class hierarchy not match the type hierarchy. 15:10:13 ericp: There are a few that cannot be anonymous, becuase they are referenced elsewhere. 15:15:00 ACTION: EricP to review #223 15:17:18 tim: On #224, it's about how shex and OWL allow use of these underscore classes 15:19:15 tim: Recent issues: https://github.com/w3c/hcls-fhir-rdf/issues/176#issuecomment-4227783324 15:20:17 ericp: This comes up in 3 places: modified elements, modified attributes, and ... 15:21:57 ACTION: Tim to reach out to jim for input on these OWL issues 15:22:37 Topic: Concept IRIs for CodeableConcepts 15:22:55 tim: Options for concept iris: https://github.com/w3c/hcls-fhir-rdf/issues/219#issuecomment-4219323715 15:35:40 dbooth: option 3 arc is too broad 15:40:36 dbooth: straw poll 15:41:05 tim: option 1 15:41:12 ericp: Need examples of only Codings 15:41:34 ericJahn: Want to see examples 15:41:50 erich: ditto 15:41:55 ken: abstain 15:41:59 steve: abstain 15:43:14 dbooth: ok, needs more discussion 15:44:50 ericp: Need to see all the places that Coding is used directly. 15:45:07 ... Then see what we gain/lose 15:46:10 ACTION: Tim to see all the places that Coding is used directly 15:46:59 Topic: Extending the ontology 15:47:01 https://github.com/w3c/hcls-fhir-rdf/pull/222/commit 15:47:12 s/commit/commits/ 15:47:29 https://github.com/eric-jahn/ucm-hcls-fhir-rdf/tree/gh-pages/docs/ucm 15:48:47 ken: Taking SULO principles of separating roles and entities 15:48:59 ... around concept of Agent and Agent roles 15:50:16 ... want guidance on: Unified Care Model (UCM) has foundational alignments with BFO, and structural alignments w SULO. Beginning to document those. 15:50:52 ... But want to integrate also with other ontologie: FHIR ont, and linking concepts with that, and the HUD model. 15:51:05 ... Want input on that. 15:51:32 ... And want to add skos for closematch and exactmatch. 15:52:36 dbooth: want to see an example of how you envision doing it, to help think it through. 15:52:51 tim: You can directly make references using FHIR CodeableConcepts 15:53:17 ... That's helpful if it is within FHIR. 15:54:05 ken: Not ready to delve into datatyping and CodeableConcept yet. 15:54:17 ... But don't want to restrict that extension. 15:54:29 tim: We can represent these profiles as OWL classes to make more specific mappings: https://hl7.org/fhir/us/sdoh-clinicalcare/artifacts.html#profiles 15:55:08 ken: I sometimes get confused about the business problem you're trying to solve. 15:55:26 tim: We're talking about mapping FHIR to another system, within OWL and RDF. 15:55:38 ... But FHIR also has a way to do mappings within FHIR. 15:56:44 ericJahn: Should start making some example RDF using CodeableConcept within FHIR and outside of FHIR. 15:57:10 ... I think that will help everyone see if it is adaptable to real world scenarios. 15:57:30 ken: Granularity issue. I'm currently focused on the concept, not the binding. 15:57:49 tim: The social determinants of health from Gravity project, has more specific FHIR concepts. 15:58:09 ... We can create OWL concepts that correspond to those profiles. I think it would make it easier for you to map to them. 15:58:37 ken: Absolutely. They've done a lot of good work on concepts. 15:59:13 ericJahn: We've never gone beyond: "what happens when there is no patient relation?" 15:59:23 ... That's when we need something other than Gravity. 15:59:38 ... Want UCM be able to do both. 16:00:57 ken: I can try relating a subject to a condition. 16:01:35 ericJahn: should do two random domains, then CodeableConcept approach 16:02:06 ACTION: Ken and EricJahn to make examples 16:02:20 ADJOURNED 16:10:04 Present: David Booth, EricP, Erich Bremer, Eric Jahn, Ken Lord, Steve Munini, Tim Prudhomme 16:10:10 rrsagent, draft minutes 16:10:11 I have made the request to generate https://www.w3.org/2026/04/16-hcls-minutes.html dbooth