This code system http://terminology.hl7.org/CodeSystem/validation-process defines the following codes:

CodeDisplay
edit-check edit check
valueset value set
primary primary source
multi multiple sources
standalone standalone
in-context in context
 <status value="draft"/> <experimental value="false"/> <date value="2018-06-05T14:06:02+00:00"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="The primary process by which the target is validated"/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/verificationresult-validation-process"/> <content value="complete"/> <concept> <code value="edit-check"/> <display value="edit check"/> </concept> <concept> <code value="valueset"/> <display value="value set"/> </concept> <concept> <code value="primary"/> <display value="primary source"/> </concept> <concept> <code value="multi"/> <display value="multiple sources"/> </concept> <concept> <code value="standalone"/> <display value="standalone"/> </concept> <concept> <code value="in-context"/> <display value="in context"/> </concept> </CodeSystem>