Pattern slicing of CodableConcepts incorrectly includes display values

[ElliotSilver]

Section Number

Profiles throughout

Issue

In several profiles, pattern-type slicing discriminators of CodeableConcept (and possibly, Coding and code) elements incorrectly includes the display values in the slice definitions. This means that (a) a code display value is necessary to meet the slice definition, and (b) the specific display value used is necessary to meet the slice definition. This reduces profile usability for environments which may prefer to omit display values for resource size, do not need the clarity that a display value can provide, or which operate in other languages.

Proposed Change

Omit display values for codes used as slicing discriminators (and probably elsewhere in the profile definitions).

Priority:

• Medium: Significant issue or clarification. Requires discussion, but should not lead to long debate.

[JohnMoehrke]

@ElliotSilver , so are you saying that

* agent[source].type = DCM#110153 "Source Role ID"
* agent[source].who 1..1
* agent[source].network 1..1
* agent[recipient] obeys val-audit-source
* agent[recipient].type = DCM#110152 "Destination Role ID"
* agent[recipient].who 1..1
* agent[recipient].network 1..1

should be

* agent[source].type = DCM#110153
* agent[source].who 1..1
* agent[source].network 1..1
* agent[recipient] obeys val-audit-source
* agent[recipient].type = DCM#110152
* agent[recipient].who 1..1
* agent[recipient].network 1..1

[ElliotSilver]

Correct. See https://chat.fhir.org/#narrow/stream/179252-IG-creation/topic/Best.20practice.20for.20constraining.20CodeableConcepts.20and.20Coding.

Although, I'd leave the display values as comments.

(I don't know if you want to restrict addressing this issue to BALP, or if there is a desire to apply more broadly.)

[JohnMoehrke]

a fsh comment?

• agent[source].type = DCM#110153 // "Source Role ID"
• agent[source].who 1..1
• agent[source].network 1..1
• agent[recipient] obeys val-audit-source
• agent[recipient].type = DCM#110152 // "Destination Role ID"
• agent[recipient].who 1..1
• agent[recipient].network 1..1