This code system http://hl7.org/fhir/provenance-entity-role defines the following codes:

LvlCodeDisplayDefinition
1derivationDerivationA transformation of an entity into another, an update of an entity resulting in a new one, or the construction of a new entity based on a preexisting entity.
2  revisionRevisionA derivation for which the resulting entity is a revised version of some original.
2  quotationQuotationThe repeat of (some or all of) an entity, such as text or image, by someone who may or may not be its original author.
2  sourceSourceA primary source for a topic refers to something produced by some agent with direct experience and knowledge about the topic, at the time of the topic's study, without benefit from hindsight.
2  removalRemovalA derivation for which the entity is removed from accessibility usually through the use of the Delete operation.