In our FHIR implementation, the Encounter ID is a sequence of three period delimited fields following this pattern: integer.integer.alphanumericString
We have a need to pass JUST the alphanumeric portion in the FHIR payload for our own internal use.
In my opinion, this sounds like a job for a proprietary extension, but maybe we could swing it as a secondary identifier with a special URI…? Any thoughts? Thanks for reading!