Stream: terminology
Topic: LOINC valueset for radiology playbook
John Moehrke (Oct 02 2019 at 22:30):
I am updating the FHIR core for R4. I understand that ImagingStudy procedureCode element needs to be mapped to a ValueSet managed by LOINC and RSNA. But have no idea how to do that in the best way. See GF#20166
John Moehrke (Oct 03 2019 at 11:39):
@Rob Hausam and @Daniel Vreeman -- please help me with this one
Rob Hausam (Oct 03 2019 at 12:04):
I think what we need in this case is terminology server (tx.fhir.org) support for this value set. I'm not thinking of any reason from the LOINC perspective that we shouldn't be able to do that. @Daniel Vreeman @Swapna Abhyankar Eventually it would be best for the build to be able to resolve this directly from fhir.loinc.org, but I don't think we're there yet.
Daniel Vreeman (Oct 03 2019 at 12:34):
We've got you covered... the canonical URI for this ValueSet is http://loinc.org/vs/loinc-rsna-radiology-playbook
It resolves and re-directs to our production FHIR API
John Moehrke (Oct 03 2019 at 12:35):
except that requires a login... and thus it is not really a valueSet that can be used for validation
Rob Hausam (Oct 03 2019 at 12:35):
and the build doesn't know about it
Daniel Vreeman (Oct 03 2019 at 12:41):
No reason tx.fhir.org couldn't redistribute the ValueSet
John Moehrke (Oct 03 2019 at 12:42):
@Grahame Grieve ?
Rob Hausam (Oct 03 2019 at 12:42):
yes, I think that's what we need
Rob Hausam (Oct 03 2019 at 12:42):
I can arrange to add that to tx.fhir.org
John Moehrke (Oct 03 2019 at 12:43):
fantastic. Let me know what I need to do to update ImagingStudy to reference the right way.
Daniel Vreeman (Oct 03 2019 at 12:45):
Also, of note is that there is a different "Imaging Documents" ValueSet which contains non-radiology imaging procedures (e.g. cardiology) too. https://loinc.org/vs/loinc-imaging-document-codes
It's a superset that includes the LOINC/RSNA Radiology Playbook + others
John Moehrke (Oct 03 2019 at 12:46):
I don't think that is yet referenced in FHIR. but I am sure it will be in an IG so it would be nice to have easily available.
John Moehrke (Oct 03 2019 at 12:47):
right @Jonathan Whitby @Brad Genereaux @Elliot Silver ?
Daniel Vreeman (Oct 03 2019 at 12:49):
Right, it was originally used in the C-CDA DIR template I believe
Robert McClure (Oct 07 2019 at 15:39):
@Daniel Vreeman and now, really @Swapna Abhyankar I just followed that url and it renders in html without a login so I assume the value set is directly available for validation. Did you change something so the login is not necessary? I don't think I'm already logged in - I'm not logged in at search.loinc.org. Because I'd rather we not replicate things (connivence copies) inside HL7 if we don't need to.
Rob Hausam (Oct 07 2019 at 15:54):
The reason for replicating it is (primarily) for making it accessible for validation in the FHIR core and IG builds.
Swapna Abhyankar (Oct 08 2019 at 15:30):
@Robert McClure , I just tried the url and needed to log in. Can you try again?
Robert McClure (Oct 09 2019 at 02:37):
@Swapna Abhyankar It worked again for me using Safari (current version) on a Mac. Doesn't work (need to log in ) in Chrome and doesn't work in iOS. So someplace I have a cookie that let's me in
Rob Hausam (Oct 09 2019 at 02:44):
apparently that's the case - when I browse it in Chrome (on the Mac) I have to log in with my LOINC credentials
John Moehrke (Apr 09 2020 at 17:10):
@Rob Hausam @Robert McClure @Brad Genereaux -- is there anything new on this item? Is there a solution I can put into the continuous FHIR core build? J#20166
Robert McClure (Apr 10 2020 at 16:37):
@John Moehrke Can you test https://fhir.loinc.org/ValueSet/loinc-rsna-radiology-playbook/ to confirm it provides what you need? It is a FHIR endpoint for the current RSNA playbook of LOINC codes.
@Rob Hausam Then you can update the url - understanding that this would be an external reference that we don't do well yet?
John Moehrke (Apr 10 2020 at 16:44):
it requires me to login.
Robert McClure (Apr 10 2020 at 16:51):
@Swapna Abhyankar A bump on this. Can you confirm that the playbook FHIR endpoint is intended to be accessible without log in. If so, seems John is having issues. I don't need to log in but I suspect that is because I have a cookie someplace..
Swapna Abhyankar (Apr 10 2020 at 17:14):
@Robert McClure @John Moehrke
Requests to LOINC's FHIR terminology server require a LOINC username and password. If you do not already have a LOINC account, you may sign up for free. The same account is used to access all LOINC content, including the online search tool and downloads.
John Moehrke (Apr 10 2020 at 17:16):
That doesn't help me, as I am trying to put a requirement in the FHIR Core specification (ImagingStudy) for compliance to codes in this valueSet.
Rob Hausam (Apr 10 2020 at 17:25):
@John Moehrke OK, I think the answer is still to add this to tx.fhir.org, as promised back in October. Apologies that hasn't happened yet. There have been just a few distractions between then and now. There are a few requests in the queue, including this one, and I believe that I can get this one and the others done and through the pipeline over the weekend (if not today).
John Moehrke (Apr 10 2020 at 17:27):
that is fantastic. I am not worried about it taking a long time... Im just poking to see if it is done.
Swapna Abhyankar (Apr 10 2020 at 17:29):
Thank you @Rob Hausam
Rob Hausam (Apr 21 2020 at 17:06):
An update - this is almost ready. The value set has been added in the package repository. There is another step needed to get it where it can actually be published on the terminology server that I need to go over with Grahame.
Last updated: Apr 12 2022 at 19:14 UTC
