FHIR Chat · PHIN VADS and VSAC · terminology

Stream: terminology

Topic: PHIN VADS and VSAC


view this post on Zulip Max Masnick (Mar 18 2021 at 19:19):

I'm trying to expand PHIN VADS and VSAC value sets, but they aren't working. Here's an example:

I'm getting "No Expansion for this valueset (Unknown Code System)" for http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3288, but this value set is in the us.cdc.phinvads package.

I've included us.cdc.phinvads and us.nlm.vsac as dependencies, which I think I'm supposed to do based on this.

Can anyone see what I'm doing wrong?

view this post on Zulip Max Masnick (Mar 19 2021 at 09:14):

It looks like I should be using valueset rather than system in my FSH, and FSH generates something like this:

{
  "resourceType": "ValueSet",
  "status": "active",
  "name": "VaccineCredentialStatusReasonValueSet",
  "id": "vaccine-credential-status-reason-value-set",
  "title": "Status reason value set",
  "description": "Reasons a vaccine was not given",
  "version": "0.2.1",
  "url": "http://hl7.org/fhir/uv/smarthealthcards-vaccination/ValueSet/vaccine-credential-status-reason-value-set",
  "compose": {
    "include": [
      {
        "valueSet": [
          "http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3380"
        ]
      }
    ]
  }
}

Even though the individual concepts in the value set are defined in ValueSet-2.16.840.1.114222.4.11.3380.json in us.cdc.phinvads#0.7.0, it looks like the IG publisher is still trying to go out to the terminology server to expand, yielding No Expansion for this valueset (Unknown Code System)

view this post on Zulip Max Masnick (Mar 19 2021 at 09:22):

So if this is the expected behavior of the IG publisher, is my only issue tx.fhir.org not expanding PHIN VADS and VSAC value sets?

view this post on Zulip Michael Lawley (Mar 20 2021 at 04:36):

Shouldn't

* include codes from system http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3288

should be

* include codes from valueset http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3288

view this post on Zulip Max Masnick (Mar 21 2021 at 10:54):

Michael Lawley said:

Shouldn't

* include codes from system http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3288

should be

* include codes from valueset http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.3288

Yes -- I noted this in my 2nd message, but it doesn't make a difference in that I still can't get a value set with PHIN VADS codes that expands (using tx.fhir.org)


Last updated: Apr 12 2022 at 19:14 UTC