This issue was suggested in the HL7 Terminology Authority meeting on 19 August 2020.

Currently, ValueSet resource only have a single string field to capture copyright information (ValueSet.copyright) which is the only way to capture copyright statements for the following:

• The copyright associated with the value set itself;
• All code systems referenced in the value set (e.g. to select concepts from)

This makes it difficult to parse the copyright content when validating that required copyright statements are valid. This issue proposes the addition of a (string) copyright element for each code system (and its version) referenced by the ValueSet.

The proposed disposition is to add an element named ValueSet.compose.include.copyright with the following:

     Datatype: string

     Cardinality: 0..1

     Description: A copyright statement for the specific

• code system asserted by the containing ValueSet.compose.include element's system value (if the associated ValueSet.compose.include.version element is not present); or
• the code system and version combination (if the associated ValueSet.compose.include.version element is present)