Deprecated Codes in A Code System

Legacy terminology-services
1

Hi all,

What is the FHIR best practice for indicating codes are deprecated in a code system? There doesn’t seem to be anything specific in the core standard, though I imagine this is a common use case.

I was able to find a DICOM example which adds it as an extension point:
http://build.fhir.org/extension-codesystem-deprecated.xml.html

An example of this is here:

 {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/codesystem-deprecated",
"valueBoolean": true
}
],
"code": "AS",
"display": "Angioscopy",
"definition": "Angioscopy device"
}

Can someone confirm that this is what we should be using.

Thanks!

Cheers,
-carl

2

hi Carl

Deprecation is tricky; LOINC uses ‘deprecated’ for what other Code systems call “Inactive”

But if you are using deprecated, then that extension is the way to go.

Grahame

···

On Wed, Nov 2, 2016 at 2:58 AM, Carl Leitner litlfred@gmail.com wrote:

Hi all,

What is the FHIR best practice for indicating codes are deprecated in a code system? There doesn’t seem to be anything specific in the core standard, though I imagine this is a common use case.

I was able to find a DICOM example which adds it as an extension point:
http://build.fhir.org/extension-codesystem-deprecated.xml.html

An example of this is here:

 {
"extension": [
{
"url": "[http://hl7.org/fhir/StructureDefinition/codesystem-deprecated](http://hl7.org/fhir/StructureDefinition/codesystem-deprecated)          ",
"valueBoolean": true
}
],
"code": "AS",
"display": "Angioscopy",
"definition": "Angioscopy device"
}

Can someone confirm that this is what we should be using.

Thanks!

Cheers,
-carl

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3

Thanks.

Going with the inactive and deprecated definitions here:

[https://www.hl7.org/fhir/2016Sep/codesystem-concept-properties.html](https://www.hl7.org/fhir/2016Sep/codesystem-concept-properties.html)

then deprecated is probably good enough for some of our uses, though inactive may be better for others.

I don’t see an extension for inactive, though here:

http://build.fhir.org/codesystem.html

I see that you there is a suggestion that it get put it as a property. Is there a specific code we should be using for the “inactive” property?

Cheers,

-carl

···

On Wed, Nov 2, 2016 at 2:58 AM, Carl Leitner litlfred@gmail.com wrote:

Hi all,

What is the FHIR best practice for indicating codes are deprecated in a code system? There doesn’t seem to be anything specific in the core standard, though I imagine this is a common use case.

I was able to find a DICOM example which adds it as an extension point:
http://build.fhir.org/extension-codesystem-deprecated.xml.html

An example of this is here:

 {
"extension": [
{
"url": "[http://hl7.org/fhir/StructureDefinition/codesystem-deprecated](http://hl7.org/fhir/StructureDefinition/codesystem-deprecated)          ",
"valueBoolean": true
}
],
"code": "AS",
"display": "Angioscopy",
"definition": "Angioscopy device"
}

Can someone confirm that this is what we should be using.

Thanks!

Cheers,
-carl

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4

I use ‘inactive’, backed by the URL in the concept properties you mentioned. Note that since it’s backed by the URL, it doesn’t really matter what the property code is.
I see that we’ve created a duplicate way to do things with deprecated - I think we should deprecate the deprecated extension and just use properties for both. (cc :Rob H and see GForge task http://gforge.hl7.org/gf/project/fhir/tracker/?action=TrackerItemEdit&tracker_item_id=12312)

Grahame

···

On Wed, Nov 2, 2016 at 6:37 AM, Carl Leitner litlfred@gmail.com wrote:

Thanks.
Going with the inactive and deprecated definitions here:

https://www.hl7.org/fhir/2016Sep/codesystem-concept-properties.html

then deprecated is probably good enough for some of our uses, though inactive may be better for others.

I don’t see an extension for inactive, though here:

http://build.fhir.org/codesystem.html

I see that you there is a suggestion that it get put it as a property. Is there a specific code we should be using for the “inactive” property?

Cheers,

-carl

On Nov 1, 2016, at 3:28 PM, Grahame Grieve grahame@healthintersections.com.au wrote:

hi Carl

Deprecation is tricky; LOINC uses ‘deprecated’ for what other Code systems call “Inactive”

But if you are using deprecated, then that extension is the way to go.

Grahame

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On Wed, Nov 2, 2016 at 2:58 AM, Carl Leitner litlfred@gmail.com wrote:

Hi all,

What is the FHIR best practice for indicating codes are deprecated in a code system? There doesn’t seem to be anything specific in the core standard, though I imagine this is a common use case.

I was able to find a DICOM example which adds it as an extension point:
http://build.fhir.org/extension-codesystem-deprecated.xml.html

An example of this is here:

 {
"extension": [
{
"url": "[http://hl7.org/fhir/StructureDefinition/codesystem-deprecated](http://hl7.org/fhir/StructureDefinition/codesystem-deprecated)          ",
"valueBoolean": true
}
],
"code": "AS",
"display": "Angioscopy",
"definition": "Angioscopy device"
}

Can someone confirm that this is what we should be using.

Thanks!

Cheers,
-carl

–

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http://www.healthintersections.com.au / grahame@healthintersections.com.au / +61 411 867 065