Existing Wording: 1. a category of the DocumentReference, referred to as class

Comment:

This requirement is unclear what it is requiring. Is there a missing word(s) between "as" and "class"? Such as "as a note class"?

There is a technical requirement in the StructureDefinition on .category to a specific valueset. Thus seems the narrative should be more clear there is a valueset

Summary:

Fix DocumentReference guidance on category