Stream: implementers
Topic: What Identifier Type to use for pseudonyms
Noemi Deppenwiese (May 28 2020 at 13:01):
In a research setting, all our patients are assigned pseudonym identifiers instead of their original patient ids from the hospital system. While the original IDs have an Identifier type (https://www.hl7.org/fhir/valueset-identifier-type.html) of MR, what is the correct code for a pseuonymised ID? Is it still a MR? Or a filler or placer identifer?
Vassil Peytchev (May 28 2020 at 13:46):
It sounds like creating and using a new type of "pseudonym" might be the best solution.
@Rik Smithies @Hugh Glover has this come up in BRR?
Lloyd McKenzie (May 28 2020 at 14:14):
It's still MR. You can use another code too, but with an extensible binding you must use the codes from the value set if they apply - even if they don't convey the level of detail desired.
John Moehrke (May 28 2020 at 15:47):
all identifiers are pseudonyms.
John Moehrke (May 28 2020 at 15:48):
there is no such type that is explicitly a pseudonym.
John Moehrke (May 28 2020 at 15:49):
I would assert that you know the assigning authority of the identifiers that you care about (aka the pseudonym you want), and that is the indication you need.
John Moehrke (May 28 2020 at 15:49):
type is not useful in this context
Last updated: Apr 12 2022 at 19:14 UTC
