This code system https://ehealthontario.ca/fhir/CodeSystem/task-code defines the following codes:

CodeDisplayDefinition
process-requestProcess eReferral RequestPrimary task associated with tracking the status of an eReferral service request
process-request-consultProcess eConsult RequestPrimary task associated with tracking the status of an eConsult service request
request-for-information-for-requesterRequest for Information for RequesterRequest for more information Information to be completed by the referral requester
general-taskGeneral TaskGeneral ad-hoc tasks that for a referral detailed in Task.definition (e.g., Contact supervisor for final approval)
data-correctionData CorrectionProviding up-to-date information of patient records/referral information (generally is from provider to the requester)
manage-requestManage RequestTo identify changes in the Referral Request Contributor
data-process-documentationData Process DocumentationTo be used to document changes in the referral process