I sugest an update to the mapping table for the Resource Encounter from HL7-v2.

Namely:

From HL7-v2 DG1 - Diagnosis Segment to FHIR Resource Encounter:

• • DG1-3* (Diagnosis Code) --> Encounter.diagnosis.condition

• DG1-6 (Diagnosis Type) --> Encounter.diagnosis.use

• DG1-15 (Diagnosis Priority) --> Encounter.diagnosis.rank