Need Help Redefining Claim.Diagnosis[n].Type on the Hl7.Fhir.Model.DiagnosisComponent

[aaronkiander]

The Base FHIR specifications define Claim.Diagnosis[n].Type as a Collection of CodeableConcepts.

But the Da Vinci PAS Implementation Guide has redefined this field as a single CodeableConcept... so NOT a list.

But when we attempt to use Firely's Hl7.Fhir.Model.DiagnosisComponent, the Type field is typed as List here.

How can we use this library in C# to create a Claim that has a single Codeable Concept for Claim.Diagnosis[n].Type rather than the list?