Existing Wording: If the operation is not called at the instance level, one of the in parameters constraint, context or valueset must be provided.

Proposed Wording: If the operation is not called at the instance level, one of the in parameters url, context or valueset must be provided.

Comment:

There is no in parameter called "constraint"

Summary:

There is no in parameter called "constraint"

Additional URL: http://hl7.org/fhir/2018Jan/operation-valueset-expand.html