This code system http://hl7.org/fhir/consentaction defines the following codes:

CodeDisplayDefinition
collectCollectGather/acquire information by an entity to achieve a stated purpose
accessAccessProvide an entity access to information to achieve a stated purpose
useUseUse of stored information by an entity fo the stated purpose
discloseDiscloseRelease / transfer of information to an entity
correctAccess and CorrectAllowing an entity to correct a patient's information