Background: The Commenter is referring to following documentation: Discovering Note and Report Types The note and report types for a particular server are discovered by invoking the #expand operation as follows: GET [base] /ValueSet/$expand?context= [context] &contextDirection= [contextDirection] where: [contextDirection] =  incoming  for write operations and  outgoing  for read operations. [context] =  DiagnosticReport.category  for DiagnosticReport report category discovery,  DiagnosticReport.code  for DiagnosticReport report type discovery,  DocumentReference.category  for DocumentReference note category discovery,  DocumentReference.type  for DocumentReference note type discovery. Examples Click on Here To See Scenario 1 Example A client determines the types of reports they can access through DiagnosticReport. The server responds with ‘foo’,’bar’ ,and ‘baz’ report types: Request for DiagnosticReport report type   GET [base] /ValueSet/$expand?context=DiagnosticReport.codes& contextDirection=incoming Response ...   Reasoning: We agree with commenter. This an editorial error.   Proposed Changes:   Change: GET [base] /ValueSet/$expand?context=DiagnosticReport.codes&c ontextDirection=incoming To: GET [base] /ValueSet/$expand?context=DiagnosticReport.codes&context Direction=outgoing