This code system http://hl7.org/fhir/contributor-type defines the following codes:

CodeDisplayDefinition
author AuthorAn author of the content of the module.
editor EditorAn editor of the content of the module.
reviewer ReviewerA reviewer of the content of the module.
endorser EndorserAn endorser of the content of the module.
<status value="draft"/><experimental value="false"/><date value="2022-12-14T07:12:54+11:00"/><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><description value="The type of contributor."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/contributor-type"/><content value="complete"/><concept><code value="author"/><display value="Author"/><definition value="An author of the content of the module."/></concept><concept><code value="editor"/><display value="Editor"/><definition value="An editor of the content of the module."/></concept><concept><code value="reviewer"/><display value="Reviewer"/><definition value="A reviewer of the content of the module."/></concept><concept><code value="endorser"/><display value="Endorser"/><definition value="An endorser of the content of the module."/></concept></CodeSystem>